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公开(公告)号:US20230249671A1
公开(公告)日:2023-08-10
申请号:US18163284
申请日:2023-02-02
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Naoki NAKANISHI , Masato YOSHIKAWA , Mitsuru YAMAGUCHI
CPC classification number: B60W20/40 , B60W10/02 , B60W40/02 , B60W10/06 , B60W10/08 , B60W2510/0208 , B60W2555/20 , B60W2710/083
Abstract: An electronic control unit includes processing circuitry. A hybrid electric vehicle has an electric traveling mode, in which the hybrid electric vehicle travels with a system clutch disengaged and an engine in a stopped state, and a hybrid traveling mode, in which the hybrid electric vehicle travels with the system clutch engaged and engine operating. The processing circuitry is configured to control, when the traveling mode is switched from the electric traveling mode to the hybrid traveling mode, a throttle opening degree of the engine at the time of completion of engagement of the system clutch in accordance with the atmospheric pressure such that a constant intake air amount is obtained regardless of the level of the atmospheric pressure.
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公开(公告)号:US20190061734A1
公开(公告)日:2019-02-28
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: B60W20/15 , B60W10/06 , B60W10/08 , B60W10/115 , B60W30/19
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.
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公开(公告)号:US20180170355A1
公开(公告)日:2018-06-21
申请号:US15806474
申请日:2017-11-08
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor: Nobufusa KOBAYASHI , Masato YOSHIKAWA , Masayuki BABA , Takeshi KITAHATA
IPC: B60W20/15 , B60W20/40 , B60W10/02 , B60W10/06 , B60W10/08 , B60W10/115 , B60W30/18 , B60K6/445 , B60K6/365 , B60K6/543 , F16H3/72
CPC classification number: B60W20/15 , B60K6/365 , B60K6/445 , B60K6/543 , B60K28/16 , B60W10/02 , B60W10/06 , B60W10/08 , B60W10/115 , B60W20/40 , B60W30/18172 , B60W30/19 , B60W2510/0657 , B60W2510/1005 , B60W2510/1095 , B60W2520/26 , B60W2710/0661 , B60W2710/0666 , B60W2710/082 , B60W2710/083 , B60W2710/085 , B60W2710/1005 , B60W2710/1022 , F16H3/728 , F16H61/0437 , F16H2059/147 , F16H2059/405 , F16H2200/201 , F16H2200/2041 , F16H2200/2066 , F16H2200/2082 , Y02T10/6239 , Y02T10/6286 , Y02T10/7258 , Y10S903/911 , Y10S903/914 , Y10S903/918 , Y10S903/93
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 action of a releasing coupling device and an engaging action of an engaging coupling device; a torque control portion configured, during the shifting action of the step-variable transmission, to implement a feedback control to control an input torque inputted to the step-variable transmission, such that a value representing a state of a rotary motion of an input rotary member of the step-variable transmission coincides with a target value dependent on a degree of progress of the shifting action; and a backup control portion configured, when it is determined that the drive wheels are slipped, to inhibit the feedback control, and to compensate a transmitted torque to be transmitted through an initiative coupling device, such that the shifting action is facilitated by compensation of the transmitted torque.
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公开(公告)号:US20170166184A1
公开(公告)日:2017-06-15
申请号:US15366431
申请日:2016-12-01
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Takaaki TOKURA , Nobufusa KOBAYASHI , Masato YOSHIKAWA , Takashi INOUE
CPC classification number: B60W20/13 , B60K6/365 , B60K6/445 , B60K6/543 , B60L15/2036 , B60L15/2054 , B60L50/61 , B60L58/12 , B60L2240/421 , B60L2240/423 , B60W10/06 , B60W10/08 , B60W2510/1005 , B60W2510/1095 , B60W2710/0644 , B60W2710/0666 , B60Y2200/92 , F16H63/50 , Y02T10/6217 , Y02T10/644 , Y02T10/645 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y02T10/7077 , Y02T10/72 , Y02T10/7275 , Y10S903/91 , Y10S903/918 , Y10S903/93
Abstract: During an upshift of an mechanical speed change mechanism, electric power generated by a first motor is reduced by a given electric power, from a start point of an inertia phase, such that an absolute value of the first motor torque is reduced, and an AT input rotational speed becomes more likely to be reduced. Thus, the upshift of the mechanical speed change mechanism is made more likely to proceed, and variation of drive torque is suppressed.
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公开(公告)号:US20230264683A1
公开(公告)日:2023-08-24
申请号:US18170538
申请日:2023-02-17
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Naoki NAKANISHI , Masato YOSHIKAWA
CPC classification number: B60W20/40 , B60W10/06 , B60W10/02 , B60W10/08 , B60W2510/0638 , B60W2510/0291 , B60W2510/0275
Abstract: A controller is employed in a vehicle including an engine, a motor generator, and a hydraulically-driven clutch. The controller includes a CPU that executes: a first starting process that starts, when starting the engine under a condition in which a system shaft torque is less than a shaft torque determination value, combustion in the engine after increasing an engine rotation speed to a motor rotation speed by engaging the clutch; a second starting process that starts, when starting the engine under a condition in which the system shaft torque is greater than or equal to the shaft torque determination value, combustion in the engine after the crankshaft starts to be rotated by engaging the clutch, the combustion being started before the engine rotation speed reaches the motor rotation speed; and a setting process that sets the shaft torque determination value to be larger as an oil temperature becomes lower.
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公开(公告)号:US20190047565A1
公开(公告)日:2019-02-14
申请号:US16058615
申请日:2018-08-08
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , AISIN AW CO., LTD.
Inventor: Hisashi ISHIHARA , Takahiro KIMURA , Masato YOSHIKAWA , Nobufusa KOBAYASHI , Kenta KUMAZAKI , Kazuomi OKASAKA , Atsushi KAYUKAWA , Daisuke SUYAMA , Mitsuru MAEDA
IPC: B60W30/18 , B60W10/08 , B60W10/115 , B60W20/00 , B60W30/19
Abstract: A control apparatus for a vehicle includes a vehicle driving control portion configured to permit reverse driving of the vehicle in a reverse direction while the automatic transmission is placed in a forward-drive low-speed gear position, with the motor/generator being operated in a negative direction to generate a negative torque, and a transmission shifting control portion configured to implement a control for promotion to establish the forward-drive low-speed gear position, when switching from forward driving of the vehicle to its reverse driving of the vehicle is required in the process of a shifting action of the automatic transmission to the forward-drive low-speed gear position. The transmission shifting control portion implements the control for promotion to establish the forward-drive low-speed gear position, according to a state of control of the engaging-side coupling device to be brought into its engaged state for establishing the forward-drive low-speed gear position.
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公开(公告)号:US20180354495A1
公开(公告)日:2018-12-13
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
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.
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公开(公告)号:US20180154796A1
公开(公告)日:2018-06-07
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 , B60W10/115 , B60W30/19 , B60W30/184
CPC classification number: B60L15/2054 , B60K6/448 , B60K6/485 , B60K6/547 , B60L50/15 , B60L50/16 , B60L58/12 , B60L2220/42 , B60L2240/12 , B60L2240/32 , B60L2240/421 , B60L2240/423 , B60L2240/441 , B60L2240/443 , B60L2240/486 , B60L2240/507 , B60L2240/545 , B60L2260/20 , B60L2260/26 , B60W10/02 , B60W10/11 , B60W10/115 , B60W30/18036 , B60W30/18072 , B60W30/1846 , B60W30/19 , B60W2510/083 , B60W2510/105 , Y02T10/6226 , Y02T10/6243 , Y02T10/7258 , Y02T10/76
Abstract: A control apparatus (80) for a vehicle (10; 100) having an electric motor (MG2; MG), and a step-variable transmission (20; 110) which is selectively placed in a plurality of speed positions with engagement of at least one of a plurality of coupling devices (CB), wherein the vehicle runs rearward with a reverse drive torque (TmR) of the electric motor generated in a forward-drive low-speed position of the transmission. The control apparatus includes: a first shift control portion (86) operated during a coasting shift-down action of the transmission to the low-speed position and configured to temporarily increase the forward drive torque (TmF) of the electric motor above its required value, for thereby temporarily increasing an input torque of the transmission to raise its input speed toward a synchronizing speed in the low-speed position. The first shift control portion commands an engaging-side coupling device, which is one of the coupling devices for the forward-drive low-speed position and which was placed in its released state before the shift-down action, to be brought into its engaged state after the input speed has been raised to a predetermined value; and a second shift control portion (88) operated when switching to rearward running of the vehicle is required during the coasting shift-down action and configured to increase an engaging force of the engaging-side coupling device, for thereby raising the input speed of the transmission toward the synchronizing speed, to bring the engaging-side coupling device into the engaged state.
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公开(公告)号:US20180148064A1
公开(公告)日:2018-05-31
申请号:US15818811
申请日:2017-11-21
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor: Jun GOTO , Kenta KUMAZAKI , Masato YOSHIKAWA , Nobufusa KOBAYASHI , Hiromichi KIMURA , Kazuyuki SHIIBA , Tooru MATSUBARA , Takeshi KITAHATA
IPC: B60W30/19 , B60W10/115 , B60W10/08 , B60W20/00 , B60W30/18
CPC classification number: B60W30/19 , B60K6/365 , B60K6/445 , B60W10/08 , B60W10/115 , B60W20/00 , B60W30/18072 , B60W2510/107 , B60W2510/1095 , B60W2520/105 , B60W2710/083 , B60W2710/1005 , B60W2710/1011 , B60W2710/1022 , B60Y2200/92 , F16H59/72 , F16H61/0403 , F16H63/502 , F16H2061/0422 , Y02T10/6239 , Y02T10/7258 , Y10S903/93
Abstract: A control apparatus (80) for a vehicular drive system (12; 105) having a step-variable transmission portion (20; 110) which is shifted to a selected one of speed positions having respective speed ratio values, with engaging and releasing actions of coupling devices (B, C), and a drive power source portion (39; 103) operatively connected to an input shaft (30) of the step-variable transmission portion, the control apparatus being configured to implement a speed synchronizing control upon a shift-down action of the step-variable transmission portion in a coasting run of a vehicle (10; 100), wherein an input shaft speed of the step-variable transmission portion is raised with an input shaft torque transmitted from the drive power source portion to the input shaft, from a pre-shift-down synchronizing speed to a post-shift-down synchronizing speed. The control apparatus includes a torque control portion (86) configured to change the input shaft torque transmitted from the drive power source portion (39; 103) to the input shaft (30) during the speed synchronizing control, on the basis of a temperature of a lubricant in the step-variable transmission portion such that the input shaft torque is larger when the lubricant temperature is comparatively low than when the temperature is comparatively high.
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公开(公告)号:US20170166202A1
公开(公告)日:2017-06-15
申请号:US15361208
申请日:2016-11-25
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor: Nobufusa KOBAYASHI , Masato YOSHIKAWA , Takaaki TANAKA
CPC classification number: B60W20/50 , B60K6/445 , F16H3/66 , F16H3/727 , F16H61/0204 , F16H61/12 , F16H2003/445 , F16H2061/1296 , F16H2200/2007 , F16H2200/2041 , F16H2200/2066 , F16H2200/2082
Abstract: When an electrical continuously variable transmission malfunctions and the operation of an engine is stopped, an automatic transmission is caused to upshift. Therefore, when the rotation of the engine is stopped as a result of a stop of the operation, an AT input rotation speed is decreased as compared to that before it is determined that there is a malfunction in the electrical continuously variable transmission. Thus, an MG1 rotation speed is decreased in absolute value as compared to when the automatic transmission is not caused to upshift, so an overspeed of a first electric motor is prevented.
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