公开(公告)号：US11433912B2

公开(公告)日：2022-09-06

申请号：US17023549

申请日：2020-09-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takeshi Kitahata ,  Atsushi Tabata ,  Kenji Miyasaka ,  Koichi Okuda

IPC: F16H61/12 ,  B60W50/02 ,  F16H59/18 ,  F16H59/44 ,  F16H59/72 ,  G07C5/08

Abstract: A vehicle failure-factor specifying apparatus includes (a) a peculiarity-presence determining portion configured to determine, based on a pre-failure driving state in a stage prior to occurrence of a certain failure in a vehicle, whether a peculiarity was present or absent in the pre-failure driving state, and (b) a failure-causing-driving state specifying portion configured, when the peculiarity was present in the pre-failure driving state, to determine whether the peculiarity present in the pre-failure driving state of the vehicle is substantially identical with a peculiarity in the pre-failure driving state of other vehicles. The peculiarity-presence determining portion determines whether the peculiarity was present or absent in the pre-failure driving state of the vehicle, depending on whether a frequency distribution of the pre-failure driving state of the vehicle is deviated from a frequency distribution of a non-failure driving state of a plurality of vehicles including the other vehicles in a non-failure case.

公开(公告)号：US11383693B2

公开(公告)日：2022-07-12

申请号：US16372514

申请日：2019-04-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takeshi Kitahata ,  Tooru Matsubara ,  Kazuyuki Shiiba ,  Koichi Okuda ,  Atsushi Tabata

IPC: B60W20/00 ,  B60K6/387 ,  B60K6/547 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60K6/40

Abstract: A hybrid vehicle with an engine and a rotary machine each coupled to a drive wheel in a power transmittable manner, comprises: an electronic control device that makes the rotary machine output a starting-time compensation torque to compensate a drop in a drive torque caused in a starting process of the engine in addition to a running torque when the engine is started while the vehicle is in a running state in which the drive torque is generated by the rotary machine and the engine is in a stopped state. The electronic control device starts the engine such that a starting-time inertia torque that is generated according to starting of the engine and causes the drop in the drive torque is made smaller when a torque margin of the rotary machine which is applied to the starting-time compensation torque is relatively small than when the torque margin is relatively large.

公开(公告)号：US10569662B2

公开(公告)日：2020-02-25

申请号：US15828615

申请日：2017-12-01

Applicant: Toyota Jidosha Kabushiki Kaisha ,  Aisin AW Co., Ltd.

Inventor： Kenta Kumazaki ,  Takeshi Kitahata ,  Masato Yoshikawa ,  Hisashi Ishihara ,  Hiromichi Kimura ,  Kazuyuki Shiiba ,  Tooru Matsubara ,  Mitsuru Maeda

IPC: B60L15/20 ,  B60W30/18 ,  B60W10/115 ,  B60W30/184 ,  B60W30/19 ,  B60W10/11

Abstract: A control apparatus for a vehicle having an electric motor, and a step-variable transmission selectively placed in a speed position with engagement of a coupling device, wherein the vehicle runs rearward with a reverse drive torque of the electric motor generated in a forward-drive low-speed position of the transmission, is provided. The control apparatus includes: a first shift control portion temporarily increasing an input torque of the transmission to raise its input speed toward a synchronizing speed in the low-speed position, and commands an engaging-side coupling device to be brought into its engaged state after the input speed has been raised to a predetermined value; and a second shift control portion increasing an engaging force of the engaging-side coupling device to bring the engaging-side coupling device into the engaged state.

公开(公告)号：US10343508B2

公开(公告)日：2019-07-09

申请号：US15831593

申请日：2017-12-05

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Koji Sugiyama ,  Kenta Kumazaki ,  Hiromichi Kimura ,  Kazuyuki Shiiba ,  Tooru Matsubara ,  Shinichi Sasade ,  Takeshi Kitahata ,  Nobufusa Kobayashi ,  Masato Yoshikawa

IPC: B60K6/365 ,  B60K6/445 ,  B60W30/19 ,  B60W10/10 ,  B60K6/547 ,  B60W10/06 ,  B60W10/08 ,  B60W10/115 ,  B60W10/26 ,  B60W20/30

Abstract: A vehicle control apparatus includes: a transmission shifting control portion configured to implement a shifting action of a step-variable transmission by controlling a releasing coupling device and an engaging coupling device; a hybrid control portion configured to control an output torque of a first motor/generator and an output torque of a second motor/generator, based on an output torque of an engine and a transmitted torque to be transmitted through an initiative coupling device, such that a rotational acceleration value of the second motor/generator and a rotational acceleration value of the engine are changed along respective target trajectories during the shifting action; and a target-trajectory setting portion configured to set the target trajectories, based on a maximum charging amount of an electric power that is chargeable to an electric power storage device and a maximum discharging amount of the electric power that is dischargeable from the electric power storage device.

公开(公告)号：US09932039B2

公开(公告)日：2018-04-03

申请号：US14846408

申请日：2015-09-04

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kazuhiro Iketomi ,  Shinichi Sasade ,  Munehiro Katsumata ,  Kazuyuki Shiiba ,  Tooru Matsubara ,  Takeshi Kitahata ,  Kenta Kumazaki

IPC: B60W10/06 ,  B60W30/188 ,  B60W10/111 ,  B60K6/445 ,  B60K6/547 ,  B60W10/11 ,  B60W20/00 ,  F16H3/72 ,  B60W20/30 ,  B60K6/36 ,  B60W10/08 ,  B60W20/10 ,  B60W30/19 ,  F16H61/66 ,  F16H37/02 ,  F16H37/08

CPC classification number: B60W30/188 ,  B60K6/36 ,  B60K6/445 ,  B60K6/547 ,  B60W10/06 ,  B60W10/08 ,  B60W10/11 ,  B60W10/111 ,  B60W20/00 ,  B60W20/10 ,  B60W20/30 ,  B60W30/19 ,  B60W2510/0638 ,  B60W2520/10 ,  B60W2520/105 ,  B60W2540/10 ,  B60W2710/0644 ,  B60W2710/0661 ,  B60W2710/1005 ,  B60W2710/1011 ,  F16H3/727 ,  F16H2037/023 ,  F16H2037/0866 ,  F16H2037/0873 ,  F16H2061/6615 ,  Y02T10/6239 ,  Y02T10/6286 ,  Y10S903/918 ,  Y10S903/919 ,  Y10S903/93

Abstract: A control device is configured to: (i) control rotation speed of internal combustion engine such that the rotation speed of the internal combustion engine is increased with an increase in a traveling speed of a vehicle, (ii) execute a pseudo gear shift to control the rotation speed of the internal combustion engine such that the rotation speed of the internal combustion engine is decreased to a first rotation speed, (iii) execute a mechanical gear shift to change a second gear ratio according to a gear shift line determined by the traveling speed and a value according to the acceleration request, and (iv) execute adjustment control to adjust the rotation speed of the internal combustion engine in advance in a period before executing the mechanical gear shift such that the rotation speed of the internal combustion engine matches the pseudo gear shift threshold value when the mechanical gear shift is performed.

公开(公告)号：US11694492B2

公开(公告)日：2023-07-04

申请号：US17066575

申请日：2020-10-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kenji Miyasaka ,  Atsushi Tabata ,  Takeshi Kitahata ,  Koichi Okuda

IPC: G07C5/08 ,  G06N20/00

CPC classification number: G07C5/0816 ,  G06N20/00 ,  G07C5/0808

Abstract: A cause for a malfunction in a vehicle is identified using a preset malfunction cause identifying model indicating a relation between the cause for the malfunction identified based on a detection value of an experimental vehicle sensor such as an oil pressure sensor, which is a detection value allowing the cause for the malfunction to be identified more easily than a detection value of an in-vehicle sensor group that is the same as an in-vehicle sensor group equipped in the vehicle, and the detection value of the in-vehicle sensor group, and the detection value of the in-vehicle sensor group when the malfunction has occurred in the vehicle. Therefore, in the case where the vehicle is not equipped with the experimental vehicle sensor, it is possible to improve the accuracy of the identification of the cause for the malfunction in the vehicle.

公开(公告)号：US11117565B2

公开(公告)日：2021-09-14

申请号：US16372514

申请日：2019-04-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takeshi Kitahata ,  Tooru Matsubara ,  Kazuyuki Shiiba ,  Koichi Okuda ,  Atsushi Tabata

IPC: B60W20/00 ,  B60K6/40 ,  B60K6/547 ,  B60K6/387 ,  B60W10/06 ,  B60W10/08 ,  B60W10/02

Abstract: A hybrid vehicle with an engine and a rotary machine each coupled to a drive wheel in a power transmittable manner, comprises: an electronic control device that makes the rotary machine output a starting-time compensation torque to compensate a drop in a drive torque caused in a starting process of the engine in addition to a running torque when the engine is started while the vehicle is in a running state in which the drive torque is generated by the rotary machine and the engine is in a stopped state. The electronic control device starts the engine such that a starting-time inertia torque that is generated according to starting of the engine and causes the drop in the drive torque is made smaller when a torque margin of the rotary machine which is applied to the starting-time compensation torque is relatively small than when the torque margin is relatively large.

公开(公告)号：US10894538B2

公开(公告)日：2021-01-19

申请号：US16420664

申请日：2019-05-23

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takeshi Kitahata ,  Tooru Matsubara ,  Kazuyuki Shiiba ,  Koichi Okuda ,  Atsushi Tabata

IPC: B60W10/10 ,  B60W20/20 ,  B60W20/13 ,  B60W30/192

Abstract: A control apparatus for a hybrid vehicle that includes an engine serving as a drive force source, an electric motor serving as a drive force source, drive wheels, a storage battery for supplying and receiving an electric power to and from the electric motor, a transmission mechanism for transmitting a drive force supplied from each of the drive force sources toward the drive wheels. During running of the hybrid vehicle by a drive force of the electric motor with the engine being stopped, the control apparatus is configured to determine whether the engine is to be started. When determining that the engine is to be started during the running of the hybrid vehicle, the control apparatus is configured to cause a gear ratio of the transmission mechanism to be changed and to cause the engine to be started after the gear ratio of the transmission mechanism has been changed.

公开(公告)号：US10583825B2

公开(公告)日：2020-03-10

申请号：US15852101

申请日：2017-12-22

Applicant: Toyota Jidosha Kabushiki Kaisha ,  Aisin AW Co., Ltd.

Inventor： Munehiro Katsumata ,  Hiromichi Kimura ,  Kazuyuki Shiiba ,  Tooru Matsubara ,  Takeshi Kitahata ,  Kenta Kumazaki ,  Nobufusa Kobayashi ,  Masato Yoshikawa ,  Takahiro Kimura ,  Daisuke Suyama ,  Kazuomi Okasaka

IPC: B60W30/19 ,  B60W20/15 ,  B60W20/10 ,  B60K6/365 ,  B60W10/115 ,  B60K6/445 ,  B60W10/06 ,  B60W10/08 ,  B60W10/105

Abstract: A control apparatus for a hybrid vehicle, having an engine, an electric motor, and an automatic transmission which is placed in a selected speed position with engagement of selected at least one of coupling devices, includes: an input torque control portion controlling the electric motor for controlling an input torque transmitted to the automatic transmission during a shifting action of the automatic transmission, based on output torque of the engine and torque transmitted through the coupling devices, such that a value representing a rotating state of an automatic transmission input rotary member coincides with a target value. The input torque control portion controls the input torque to be not smaller than a predetermined lower limit, when a running state of the hybrid vehicle is switched from a power-on state to a power-off state during a shift-down action of the automatic transmission in the power-on state.

公开(公告)号：US10407075B2

公开(公告)日：2019-09-10

申请号：US15841623

申请日：2017-12-14

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Hiromasa Tatsushiro ,  Hiromichi Kimura ,  Tooru Matsubara ,  Kazuyuki Shiiba ,  Takeshi Kitahata ,  Shinichi Sasade ,  Nobufusa Kobayashi ,  Masato Yoshikawa ,  Takahiro Kimura

IPC: B60W30/19 ,  B60W20/15 ,  B60W10/11 ,  B60K6/365 ,  B60K6/445 ,  B60W10/06 ,  B60W10/08 ,  B60W10/115 ,  F16H61/04

Abstract: A control apparatus (80; 122) for a vehicle provided with a motor/generator (MG2; MG) functioning as a drive power source, and a step-variable transmission (20; 110) which constitutes a part of a power transmitting path between the drive power source and drive wheels (28; 116) and which is placed in a selected one of a plurality of speed positions with engagement of a selected one or ones of a plurality of coupling devices (CB). The control apparatus includes: a torque control portion (86) configured to control an output torque (Ti) of the drive power source (MG2) during a shifting action of the step-variable transmission (40; 110) from one of the speed positions to another of the speed positions, on the basis of a required vehicle drive torque (Tidem) corresponding to an operation amount (θacc) of an accelerator pedal, such that a value representing a state of a rotary motion of an input rotary member (30) of the step-variable transmission coincides with a target value; and a torque limiting portion (92) configured to limit the required vehicle drive torque to a predetermined lower limit value (Tif) in the process of a shift-up action of the step-variable transmission which is performed by placement of the accelerator pedal in an operated position.