公开(公告)号：US20180112612A1

公开(公告)日：2018-04-26

申请号：US15730992

申请日：2017-10-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Asuka TSUNODA ,  Takashi SUZUKI ,  Tomoya SUZUKI ,  Takahiro NISHIGAKI ,  Kenya MARUYAMA

IPC: F02D41/08 ,  G06F15/163

CPC classification number: F02D41/08 ,  B60W20/00 ,  F02D31/003 ,  F02D41/0002 ,  F02D2009/0233 ,  F02D2200/101 ,  F02D2200/501 ,  F02D2250/28 ,  G06F15/163 ,  Y02T10/42

Abstract: During idle operation of an engine, on satisfaction of a predetermined condition including a condition that a vehicle speed is not higher than a reference value, a hybrid vehicle controls the engine with adjusting a throttle position such that a rotation speed of the engine becomes equal to target idle rotation speed or is in a predetermined rotation speed range including the target idle rotation speed. On non-satisfaction of predetermined condition, the hybrid vehicle controls the engine with setting the throttle position to a fixed value, The reference value is set to provide larger value when the rotation speed of the engine becomes equal to or lower than a predetermined rotation speed that is lower than the target idle rotation speed and is higher than a resonance rotation speed of the vehicle, compared with a value when the rotation speed of the engine is higher than the predetermined rotation speed.

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。

公开(公告)号：US20200300192A1

公开(公告)日：2020-09-24

申请号：US16809783

申请日：2020-03-05

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takahiro NISHIGAKI ,  Ryohei SUGAMATA

IPC: F02D41/18 ,  F02D41/00

Abstract: An air amount control valve of a vehicle changes an intake air amount drawn into a cylinder. A fuel cutoff process stops fuel injection from a fuel injection valve when stopping combustion in the cylinder in a case in which a crankshaft is rotating. When execution of the fuel cutoff process is requested, a temperature-increase limiting process is executed to draw fresh air into a catalyst by increasing the intake air amount through control of the air amount control valve. In a case in which an anomaly occurs in driving of the air amount control valve when executing the temperature-increase limiting process, an amount of air drawn into the catalyst is increased by increasing an engine speed.

公开(公告)号：US20180149103A1

公开(公告)日：2018-05-31

申请号：US15798614

申请日：2017-10-31

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takahiro NISHIGAKI ,  Takashi SUZUKI ,  Tomoya SUZUKI

IPC: F02D41/02 ,  B60W10/06 ,  B60W10/08 ,  B60W10/115 ,  B60W20/00

CPC classification number: F02D41/029 ,  B60W10/06 ,  B60W10/08 ,  B60W10/115 ,  B60W20/00 ,  B60W2530/12 ,  F01N3/023 ,  F01N9/002 ,  F01N2590/11 ,  F01N2900/08 ,  F01N2900/1602 ,  F01N2900/1606 ,  F02D17/04 ,  F02D29/02 ,  F02D2200/0812 ,  Y02T10/47

Abstract: A hybrid vehicle includes: an engine for traveling in which a filter that removes particulate matter is attached to an exhaust system; a motor configured to generate a driving force for the hybrid vehicle; and an electronic control unit configured to restart injection of a fuel into the engine when a needed output of the engine reaches a threshold or higher while the injection of the fuel into the engine is stopped. The electronic control unit is configured to, when a filter regeneration condition that an accumulation amount of the particulate matter on the filter is equal to or more than a predetermined accumulation amount and a temperature of the filter is equal to or higher than a predetermined temperature is established, set the threshold to be higher than a threshold set when the filter regeneration condition is not established.

公开(公告)号：US20230304434A1

公开(公告)日：2023-09-28

申请号：US18183333

申请日：2023-03-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masaya KUBO ,  Koji ICHIKAWA ,  Takahiro YOSHIDA ,  Takahiro NISHIGAKI ,  Noriaki KUMAGAI ,  Sohichi IMAI ,  Masahiro NOGUCHI

IPC: F01P7/16

CPC classification number: F01P7/164 ,  F01P2050/24 ,  F01P2037/00 ,  F01P2025/36

Abstract: A cooling device is employed in a vehicle including an internal combustion engine provided with a forced-induction device and an intercooler. The cooling device includes a circulation circuit configured to circulate coolant supplied to the intercooler, an electric pump configured to operate to circulate the coolant in the circulation circuit, and processing circuitry configured to control a discharge amount of the coolant of the pump. The processing circuitry is configured to execute a control amount deriving process of deriving a control amount of the pump based on a requested flow rate and a coolant temperature, and an operation process of causing the pump to operate based on the control amount when the requested flow rate is larger than 0.

公开(公告)号：US20200318558A1

公开(公告)日：2020-10-08

申请号：US16810093

申请日：2020-03-05

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryohei SUGAMATA ,  Takahiro NISHIGAKI

IPC: F02D41/00 ,  F02D19/08

Abstract: A control device for an engine, includes: an air intake controller controlling a quantity of intake air to be supplied to a catalyst provided in an exhaust passage by controlling an open degree of a throttle valve provided in an intake passage; a fuel controller controlling fuel supply to the engine, wherein the fuel controller stops the fuel supply and the air intake controller performs a first control supplying intake air to the catalyst by opening the throttle valve, for a predetermined period of time after an end of the first control, the fuel controller stops the fuel supply, and the air intake controller performs a second control decreasing the open degree of the throttle valve to an open degree smaller than that during the first control, and after the predetermined period of time passes, the fuel controller starts a third control supplying the fuel to the engine.

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

IPC: F02D41/30 ,  F02M37/18

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.