公开(公告)号：US11725726B2

公开(公告)日：2023-08-15

申请号：US17092713

申请日：2020-11-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Koichi Okuda ,  Tooru Matsubara ,  Hiromasa Tatsushiro ,  Kota Fujii

IPC: F16H61/12 ,  G07C5/08

CPC classification number: F16H61/12 ,  G07C5/0808 ,  F16H2061/1264 ,  F16H2061/1276

Abstract: A vehicle anomaly analysis apparatus for analyzing an anomaly having occurred in a shift control operation executed in an automatic transmission of a vehicle, by using a rotational speed changed in process of the shift control operation. The vehicle anomaly analysis apparatus specifies cause of the anomaly in the shift control operation, by applying an anomaly-cause specifying model that indicates a relationship between a manner of chronological change of a racing amount and the cause of the anomaly in the shift control operation, to the manner of the chronological change of the racing amount upon occurrence of the anomaly in the shift control operation. The racing amount is an amount of increase of the rotational speed in the process of the shift control operation, relative to a reference rotational speed that is based on a gear ratio and an output rotational speed of the automatic transmission.

公开(公告)号：US11628821B2

公开(公告)日：2023-04-18

申请号：US16934469

申请日：2020-07-21

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Koichi Okuda ,  Tooru Matsubara ,  Yasuhiro Hiasa ,  Yasutaka Tsuchida

IPC: F02D41/10 ,  B60W20/15 ,  B60W30/188 ,  B60W10/06 ,  B60W10/10

Abstract: When an acceleration request is issued, an electronic control unit for a hybrid vehicle performs control for producing an acceleration feeling of setting a target engine rotation speed to an initial rotation speed (=basic initial value+initial value correction value) which is lower than an optimal-fuel-efficiency rotation speed at which required engine power is able to be most efficiently output and increasing the engine rotation speed from the initial rotation speed to the optimal-fuel-efficiency rotation speed at a rotation speed increase rate (=basic increase rate+increase rate correction value) based on the elapse of time. When the target supercharging pressure is high, the initial value correction value is set to a greater value and the increase rate correction value is set to a greater value than when the target supercharging pressure is low.

公开(公告)号：US11433874B2

公开(公告)日：2022-09-06

申请号：US17025699

申请日：2020-09-18

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Koichi Okuda ,  Tooru Matsubara ,  Takahiro Kimura

IPC: B60W20/15 ,  B60W10/08 ,  B60W40/06 ,  B60W10/10 ,  B60W10/06

Abstract: When a speed difference between a maximum rotation speed and an engine rotation speed, that is, an actual rotation speed difference, is equal to or less than a margin rotation speed difference, an engine operating point is changed such that the actual rotation speed difference becomes greater than the margin rotation speed difference. Accordingly, the speed difference between the maximum rotation speed and the engine rotation speed is prevented from becoming equal to or less than the margin rotation speed difference. As a result, since a relatively sufficient margin is secured in the difference between the maximum rotation speed and the engine rotation speed, it is possible to prevent the engine rotation speed from falling into a high-rotation state in which the engine rotation speed exceeds the maximum rotation speed.

公开(公告)号：US11305781B2

公开(公告)日：2022-04-19

申请号：US17093046

申请日：2020-11-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Koichi Okuda ,  Tooru Matsubara ,  Hiromasa Tatsushiro ,  Kota Fujii

IPC: F16H61/00 ,  B60W50/00 ,  F16H61/02 ,  F16H59/72 ,  G06N20/00

Abstract: A vehicle control device stores learning data to correct a parameter used in a control program for controlling a vehicle, determines whether or not a part controlled by the parameter has been replaced; and resets the learning data when determining that the part has been replaced. The vehicle control device determines whether or not the part has been replaced by identifying individuality of the part based on characteristics of a sensor output from a sensor provided in the part.

公开(公告)号：US11247658B2

公开(公告)日：2022-02-15

申请号：US16719873

申请日：2019-12-18

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Aisin AW Co., Ltd.

Inventor： Kenta Kumazaki ,  Tooru Matsubara ,  Daisuke Suyama ,  Mitsuru Maeda ,  Tomoyasu Kimura

IPC: B60W20/00 ,  B60W10/10 ,  B60W30/19 ,  F16D25/00 ,  F16D48/06 ,  B60K6/24 ,  B60K6/26 ,  B60K6/36 ,  B60K6/543 ,  B60K6/387 ,  B60W10/02 ,  B60K6/383 ,  B60K6/445 ,  B60K6/547 ,  B60K6/365

Abstract: A control apparatus for a vehicle provided, with a step-variable transmission, includes: a feedback control portion; an input torque resetting control portion; a target input torque setting portion operated upon an increase of the accelerator pedal operation amount in the process of the shift-down action in a power-off state of the vehicle, to restrict an amount of increase of the input torque target value with respect to an amount of increase of an operator-required input torque value, so as to keep the target value not larger than an upper limit value until termination of the input torque resetting control; and an actual input torque increasing portion operated upon the increase of the accelerator pedal operation amount prior to initiation of the inertia phase, to implement an input torque increasing control to control the input torque so as to be larger than the target value, prior to the inertia phase initiation.

公开(公告)号：US10794482B2

公开(公告)日：2020-10-06

申请号：US16104237

申请日：2018-08-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yasuhiro Hiasa ,  Ichiro Isobe ,  Tooru Matsubara ,  Kazuyuki Shiiba

IPC: F16H61/70 ,  B60K6/445 ,  B60K6/543 ,  B60K6/547 ,  F16H61/02 ,  F16H61/66 ,  F16H37/08 ,  F16H3/72 ,  B60K6/365 ,  F16H3/66 ,  F16H61/04 ,  B60W20/30 ,  F16H61/686 ,  F16H59/18 ,  F16H59/72

Abstract: A shifting control apparatus includes an overall-speed-position shifting control portion including: a synchronous shifting control portion to implement a synchronous control of shifting actions of the vehicular automatic transmission and the step-variable transmission portion to respective target ones of the overall speed positions and the gear positions, such that a moment of generation of a command to establish the target overall speed position is delayed with respect to a moment of generation of a command to establish the target gear position, so that the shifting actions take place in synchronization with each other, irrespective of different control response times of the shifting actions; and a multiple-step shifting control portion to command the synchronous shifting control portion such that the vehicular automatic transmission performs a shift-up action from a present one of the overall speed position to the target overall speed position through at least one intermediate overall speed position intermediate.

公开(公告)号：US10661781B2

公开(公告)日：2020-05-26

申请号：US16046363

申请日：2018-07-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Koji Sugiyama ,  Shinichi Sasade ,  Kazuyuki Shiiba ,  Tooru Matsubara ,  Masato Yoshikawa ,  Takahiro Kimura

IPC: B60W10/10 ,  B60W30/192 ,  F02D41/02 ,  B60W20/15 ,  B60W10/08 ,  B60W10/115 ,  B60W30/19 ,  B60W10/06 ,  B60K6/445 ,  B60K6/547 ,  B60K6/365

Abstract: A vehicle control apparatus includes: a state determining portion configured to determine whether an engine is in a first operational state corresponding to a normal operation state or a second operational state corresponding to an engine stop state in which the engine is stopped and/or a catalyst warming-up state in which the engine is operated to warm up a catalyst; and a shift control portion configured, in process of a shifting action of a transmission mechanism, to control at least an engaging pressure of an engaging coupling device as one of a plurality of coupling devices of the transmission mechanism, which is to be placed in an engaged state upon completion of the shifting action, such that the engaging pressure of the engaging coupling device is controlled to be lower when the engine is in the second operational state, than when the engine is in the first operational state.

公开(公告)号：US10543831B2

公开(公告)日：2020-01-28

申请号：US15997220

申请日：2018-06-04

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kenta Kumazaki ,  Hiromichi Kimura ,  Kazuyuki Shiiba ,  Tooru Matsubara ,  Takeshi Kitahata ,  Nobufusa Kobayashi ,  Masato Yoshikawa ,  Masayuki Baba ,  Shun Sato ,  Takahiro Kawaguchi

IPC: B60W30/00 ,  B60W20/30 ,  F16H61/02 ,  B60L7/10 ,  B60K6/547 ,  B60K6/26 ,  B60K6/40 ,  B60L15/20 ,  B60L7/18 ,  F16H61/68

Abstract: A control apparatus for a vehicle provided with a motor/generator functioning as a drive power source, and a mechanically operated transmission mechanism which constitutes a part of a power transmitting path between the motor/generator and drive wheels, the control apparatus including a motor/generator control portion configured to implement a regenerative torque control of the motor/generator so as to generate a regenerative torque according to a braking operation by an operator of the vehicle in a decelerating run of the vehicle, and a transmission shifting control portion configured to initiate a shift-down action of the mechanically operated transmission mechanism after a rate of change of the regenerative torque has been held within a predetermined range for at least a predetermined length of time, where a determination to implement the shift-down action is made in the process of the regenerative torque control of the motor/generator according to the braking operation.

公开(公告)号：US09975540B2

公开(公告)日：2018-05-22

申请号：US15121127

申请日：2014-11-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kenta Kumazaki ,  Atsushi Tabata ,  Tooru Matsubara ,  Tatsuya Imamura ,  Kazuyuki Shiiba

IPC: B60W10/06 ,  B60W10/08 ,  B60W20/10 ,  B60K6/445 ,  B60K6/547 ,  B60L11/14 ,  B60W10/26 ,  B60W20/00 ,  F02D41/02 ,  F02D29/02 ,  B60K6/365 ,  B60K6/383 ,  B60K6/387 ,  F16H3/72 ,  F16H3/66 ,  B60K6/38 ,  F02M26/06 ,  F02M26/23

CPC classification number: B60W20/10 ,  B60K6/365 ,  B60K6/383 ,  B60K6/387 ,  B60K6/445 ,  B60K6/547 ,  B60K2006/381 ,  B60L11/14 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60W20/00 ,  B60W2710/0622 ,  F02D29/02 ,  F02D41/023 ,  F02D2250/21 ,  F02M26/06 ,  F02M26/23 ,  F16H3/66 ,  F16H3/728 ,  F16H2200/0043 ,  F16H2200/2007 ,  F16H2200/201 ,  F16H2200/2043 ,  F16H2200/2066 ,  F16H2200/2082 ,  Y02T10/6239 ,  Y02T10/70 ,  Y02T10/7077

Abstract: A control apparatus for a hybrid vehicle is provided with: an air-fuel ratio determinator configured to determine an air-fuel ratio of an internal combustion engine in a predetermined period until speed change by a transmission is actually performed; and a controller configured to control at least one of the internal combustion engine and an electric motor in such a manner that a possible amount of torque down of the internal combustion engine is increased if the air-fuel ratio of the internal combustion engine is lean in the predetermined period. By this, it is possible to avoid a detrimental effect, such as a torque shock, deterioration of durability of a friction material, and the like, which can occur in the speed change.

公开(公告)号：US09815454B2

公开(公告)日：2017-11-14

申请号：US14905401

申请日：2013-08-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Tabata ,  Toshiki Kanada ,  Tatsuya Imamura ,  Isao Satou ,  Kazuyuki Shiiba ,  Tooru Matsubara

IPC: G05D1/00 ,  B60W20/20 ,  B60K6/445 ,  B60K6/442 ,  B60W10/06 ,  B60W10/08

CPC classification number: B60W20/20 ,  B60K6/442 ,  B60K6/445 ,  B60W10/06 ,  B60W10/08 ,  B60Y2200/92 ,  B60Y2300/182 ,  B60Y2300/43 ,  B60Y2300/60 ,  Y02T10/6234 ,  Y02T10/6239 ,  Y02T10/6286 ,  Y02T10/7258 ,  Y10S903/93

Abstract: A control system for a hybrid vehicle having an engine and a plurality of motors is provided. An operating mode of the hybrid vehicle is selected depending on a required driving force from a first mode where the vehicle is powered by the engine, a second mode where the vehicle is powered by the plurality of motors, and a third mode where the vehicle is powered by any one of the motors. The control system is characterized by a detection means that detects an output power of the prime mover, and a setting means that alters a selectability of the second mode in accordance with the output power of the prime mover.