公开(公告)号：US20170248090A1

公开(公告)日：2017-08-31

申请号：US15514392

申请日：2015-09-18

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi FUKUDA ,  Tomohiro SHINAGAWA

IPC: F02D41/08

CPC classification number: F02D41/083 ,  B60H1/3208 ,  B60H2001/3273 ,  F02D31/003 ,  F02D41/16 ,  F02D2200/1002 ,  F02D2200/703 ,  F02D2250/24

Abstract: An ECU avoids engine stall by putting a compressor into a stationary state in a case where the rotation speed of a crankshaft is equal to or less than a predetermined speed during an idle operation of an internal combustion engine. During the idle operation, the ECU calculates a total load torque applied to the crankshaft by the compressor and an alternator. The ECU calculates the maximum torque of the internal combustion engine during the idle operation based on a target speed during the idle operation. Then, the ECU raises the predetermined speed in a case where the value obtained by subtracting the load torque from the maximum torque is equal to or less than a predetermined value.

公开(公告)号：US20230234555A1

公开(公告)日：2023-07-27

申请号：US17979764

申请日：2022-11-03

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi FUKUDA ,  Eiichiroh KIDO

IPC: B60W20/14 ,  B60W30/18 ,  B60W10/06 ,  B60W10/02 ,  B60W10/08 ,  F02D41/04

CPC classification number: B60W20/14 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W30/18127 ,  F02D41/042 ,  B60W2510/244

Abstract: A control device performs braking using a regenerative brake based on power generation in a motor generator in motor-driven traveling and performs a battery protecting process of starting an engine to set up transmission of a driving force between the motor generator and the engine using a clutch and performing braking based on an engine brake when a state of charge of a battery is equal to or greater than a threshold value in the motor-driven traveling. The control device sets a fuel-cutoff-permission rotation speed to a second rotation speed lower than a first rotation speed when the engine is started through the battery protecting process.

公开(公告)号：US20230202459A1

公开(公告)日：2023-06-29

申请号：US18058772

申请日：2022-11-25

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi FUKUDA

IPC: B60W20/40 ,  B60W10/02 ,  B60W10/08 ,  B60W10/06

CPC classification number: B60W20/40 ,  B60W10/02 ,  B60W10/08 ,  B60W10/06 ,  B60W2510/06 ,  B60W2710/027 ,  B60W2510/0638

Abstract: The hybrid electric vehicle has a first traveling mode in which the clutch is engaged and the engine is operating, and a second traveling mode in which the clutch is disengaged and the engine is stopped. When switching from the first traveling mode to the second traveling mode, the controller for the hybrid electric vehicle performs the torque replacement control and then disengages the clutch. During the torque replacement control, the controller causes the variable valve mechanism provided in the engine to change the valve timing at a smaller change rate than during a normal engine control.

公开(公告)号：US20240025230A1

公开(公告)日：2024-01-25

申请号：US18355413

申请日：2023-07-20

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shoichi AKIYAMA ,  Dai OKUMURA ,  Atsushi FUKUDA ,  Makoto MONYA

IPC: B60H1/00 ,  F04D27/00

CPC classification number: B60H1/00878 ,  B60H1/00821 ,  B60H1/00464 ,  F04D27/006

Abstract: A cooling fan device uses a cooling fan coupled to an engine via a fan clutch to generate cooling air flow for a radiator. The cooling fan device includes an electronic control unit configured to control an engagement rate of the fan clutch. The electronic control unit is configured to execute a first calculation process, a second calculation process, and an upper limit guarding process, thereby controlling the engagement rate based on a value of a coolant temperature requested engagement rate that has been subjected to an upper limit guarding process. A first upper limit rotation speed is set to a lower speed when a vehicle speed is relatively low than when the vehicle speed is relatively high.

公开(公告)号：US20230271602A1

公开(公告)日：2023-08-31

申请号：US18159763

申请日：2023-01-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tomohiro NAKANO ,  Shinichi ODA ,  Masanao IDOGAWA ,  Koji ICHIKAWA ,  Atsushi FUKUDA

IPC: B60W20/40 ,  B60K6/40 ,  B60W10/06 ,  B60W10/02

CPC classification number: B60W20/40 ,  B60K6/40 ,  B60W10/06 ,  B60W10/02 ,  B60W2510/0638 ,  B60W2510/081 ,  B60W2510/0208 ,  B60Y2200/92 ,  B60W2710/0644 ,  B60W2710/021 ,  B60W2510/0676

Abstract: A controller controls a hybrid electric vehicle. The hybrid electric vehicle includes an engine, a motor arranged in a power transmission path between the engine and a drive wheel, and a clutch arranged in the power transmission path between the engine and the motor. The controller idles the engine in accordance with a target engine rotation speed and operates the motor in accordance with a target motor rotation speed when the clutch is in a disengagement state. When the clutch is in the disengagement state and the engine is idling, the target motor rotation speed is less than the target engine rotation speed.

公开(公告)号：US20230258141A1

公开(公告)日：2023-08-17

申请号：US18167887

申请日：2023-02-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi FUKUDA ,  Eiichiroh KIDO ,  Masanao IDOGAWA

IPC: F02D41/06 ,  F02D41/40 ,  F02D41/34 ,  F02D41/04

CPC classification number: F02D41/065 ,  F02D41/401 ,  F02D41/345 ,  F02D41/042 ,  F02D2041/389

Abstract: A vehicle controller includes processing circuitry. The processing circuitry is configured to perform an intermittent stop of an engine in accordance with a traveling state of a vehicle, cause the engine to restart by self-sustaining resumption when restart of the engine is requested in a state in which the engine is rotating during the intermittent stop, and perform a retarded injection control that retards, in a combustion cycle of the engine, a starting time of a first fuel injection at the time of the restart of the engine by the self-sustaining resumption as compared to a starting time of a second fuel injection.