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公开(公告)号：US10239540B2
公开(公告)日：2019-03-26
申请号：US15726070
申请日：2017-10-05
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , AISIN AW CO., LTD.
Inventor： Takashi Miura , Seiji Masunaga , Tomohiro Chimbe , Norihiro Tsukamoto , Tomohiro Asami , Yuji Kajiyama , Kazuki Imanishi
Abstract: A vehicle control device in a vehicle including an engine and a multi-speed transmission having a plurality of gear positions, each gear position out of the plurality of gear positions established by engaging predetermined engagement devices out of a plurality of engagement devices, the vehicle control device including a shift control portion configured to control release of a release-side engagement device of the plurality of engagement devices and engagement of an engagement-side engagement device of the plurality of engagement devices so as to switch the gear position established in the multi-speed transmission, and an engine control portion configured to provide idling-reduction control of temporarily stopping the operation of the engine based on a predetermined engine stop condition.
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公开(公告)号：US10808835B2
公开(公告)日：2020-10-20
申请号：US15909140
申请日：2018-03-01
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , AISIN AW CO., LTD.
Inventor： Norihiro Tsukamoto , Tomohiro Asami , Hiromasa Takai , Masataka Hirano , Daiki Fukuda , Takuma Sugino
Abstract: A shift control device of a vehicle including an internal combustion engine and a multi-speed transmission in series, the shift control device comprises: a control portion providing a downshift control in which an input shaft rotation speed of the multi-speed transmission is increased through a torque-up of the internal combustion engine toward a post-shift input shaft rotation speed in a neutral state where a release-side engagement device to be released during a downshift of the multi-speed transmission is released, so as to engage an engagement-side engagement device to be engaged after the shift. In the case of a shift pattern having a large internal inertia of the multi-speed transmission, the control portion controls a torque capacity of the engagement-side engagement device to a value greater than zero before starting a torque-up control of the internal combustion engine.
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公开(公告)号：US10323743B2
公开(公告)日：2019-06-18
申请号：US15654254
申请日：2017-07-19
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , AISIN AW CO., LTD.
Inventor： Norihiro Tsukamoto , Tomohiro Asami , Keisuke Ota , Hiromasa Takai
Abstract: A control device of a vehicle including a motor and a multi-speed type automatic transmission including a plurality of engagement devices, the control device engaging the engagement device to be engaged and releasing the engagement device to be released when the shift is determined, and controlling an engagement pressure of an engagement device to be released during an upshift in a driven state and a downshift in a driving state and controlling an engagement pressure of an engagement device to be engaged during an upshift in the driving state and a downshift in the driven state so as to control a rotation speed of a rotating element of the automatic transmission, the control device increasing an instruction pressure of the engagement device to a target surge pressure for a target surge time when switching is performed during the upshift and the downshift in the driven state, to the driving state.
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公开(公告)号：US10415701B2
公开(公告)日：2019-09-17
申请号：US15658708
申请日：2017-07-25
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Tomohiro Chimbe , Norihiro Tsukamoto , Keisuke Ota , Tomohiro Asami , Hiromasa Takai , Daiki Fukuda
IPC: F16H61/686 , F16H61/00 , F16H61/02 , F16H61/08 , F16H61/04 , F16H3/66 , F16H59/42 , F16H59/14 , F16H59/72 , F16H59/38
Abstract: An electronic control unit is configured to control a hydraulic pressures of engaging element and disengaging element in accordance with a preset target output shaft torque during a power-on downshift. The electronic control unit is configured to delay a start of decrease in the hydraulic pressure of the disengaging element from a start of a torque phase while maintain the hydraulic pressure of the disengaging element at the start of the torque phase. The electronic control unit is configured to start decreasing the hydraulic pressure of the disengaging element when the electronic control unit determines that overspeed of an input shaft is occurring during the torque phase and a predetermined condition is established.
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公开(公告)号：US10288131B2
公开(公告)日：2019-05-14
申请号：US15644154
申请日：2017-07-07
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Shin Kitamura , Hironobu Aratake , Norihiro Tsukamoto , Tomohiro Asami , Hiromasa Takai , Daiki Fukuda
IPC: F16H61/12 , F16D48/02 , F16D25/062 , F16H61/02 , F16H61/686 , F16H61/04 , F16H61/00
Abstract: A vehicle control device including a multi-speed transmission switching gear shift positions in accordance with a combination of hydraulic friction engagement devices operations and pressure control solenoid valves, the control device shifting gears by providing a shift output signal including a quick-apply signal to the valves after a first time from a shift request, the control device has: a pulsation drive control portion to control selectively pulsating the pressure control solenoid valves in a cycle; and a quick-apply control prohibiting portion to prohibit a provision of a quick-apply control using the quick-apply signal for a second time from a time of termination of the pulsation drive control, and to permit the provision of the quick-apply control after the elapse of the second time, for a valve having undergone the control, the pulsation drive control portion to terminate the control for a valve when the shift request is made.
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Patent Agency Ranking
公开(公告)号：US10281032B2
公开(公告)日：2019-05-07
申请号：US15452849
申请日：2017-03-08
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Tomohiro Asami , Masakazu Owatari , Takashi Miura , Yuki Murakami
Abstract: Under an abnormal determination, when a transmission gear stage is switched, a torque limit value is changed from a value before switching of the transmission gear stage to a value after switching thereof in a period in which this transmission gear stage is switched.
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公开(公告)号：US10173686B2
公开(公告)日：2019-01-08
申请号：US15440423
申请日：2017-02-23
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hironobu Aratake , Norihiro Tsukamoto , Tomohiro Asami
IPC: B60W10/02 , F16D48/06 , B60W30/20 , B60W10/11 , F16D13/52 , F16H45/02 , F16D25/0638 , B60W50/00
Abstract: Lock-up clutch engagement hydraulic pressure learning control can be precisely performed by starting lock-up clutch engagement control and executing the lock-up clutch engagement hydraulic pressure learning control after execution of shift control is completed, in a case where the lock-up clutch engagement control is limited in a shift stage before execution of the shift control, when the shift control is executed in a state where a multi-disc lock-up clutch is released. Meanwhile, a decrease in fuel efficiency performance and a direct steering feeling is minimized by starting the lock-up clutch engagement control during shift control in a case where the lock-up clutch engagement control is not limited.
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公开(公告)号：US10167947B2
公开(公告)日：2019-01-01
申请号：US15643943
申请日：2017-07-07
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Tomohiro Chimbe , Norihiro Tsukamoto , Keisuke Ota , Tomohiro Asami , Yuji Kajiyama , Daiki Fukuda
Abstract: A control device of a vehicle including a multi-speed transmission having plurality of gear positions different in gear ratio selectively established by controlling engagement and release predetermined engagement devices out of plurality engagement devices, the control device involves: shift control portion configured to provide delay control of delaying time point starting provision of release-side torque phase control reducing a torque capacity of release-side engagement device by a preset delay time with respect to time point of starting provision of a torque phase control of generating a torque capacity of an engagement-side engagement device during a torque phase in a drive upshift; and a delay time setting portion configured to preset the delay time such that the delay time is shortened when a shared torque of the release-side engagement device before start of the torque phase in the drive upshift is high, as compared to when the shared torque is low.
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公开(公告)号：US10442437B2
公开(公告)日：2019-10-15
申请号：US15889478
申请日：2018-02-06
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Norihiro Tsukamoto , Tomohiro Asami
Abstract: A control device of a vehicle including a multi-speed transmission having gear positions switched by executing release of a release-side engagement device out of a plurality of engagement devices and engagement of an engagement-side engagement device out of the plurality of engagement devices, and an engine of which a power is transmitted through the multi-speed transmission to drive wheels, the control device performing a shift of the multi-speed transmission by using a predefined shift model for determining control operation amounts of a torque at an input rotating member of the multi-speed transmission, a torque capacity of the release-side engagement device, and a torque capacity of the engagement-side engagement device, the control operation amounts achieving shift target values that are a target value of a torque at an output rotating member of the multi-speed transmission and a target value of angular acceleration of the input rotating member of the multi-speed transmission, the control device comprising: a condition setting portion setting a condition necessary for determining the control operation amounts using the shift model such that during a downshift performed during deceleration running associated with accelerator-off state, an output torque of the engine is raised with the release-side engagement device released so as to increase a rotation speed of the input rotating member of the multi-speed transmission toward a synchronous rotation speed after the downshift and such that the engagement-side engagement device is then engaged; and a shift target value setting portion setting the target value of the torque at the output rotating member of the multi-speed transmission during the downshift such that the torque at the output rotating member of the multi-speed transmission is increased from a value of the torque at the output rotating member before the downshift within a range of zero or less, and when a rotation speed of the input rotating member of the multi-speed transmission approaches the synchronous rotation speed after the downshift, the target value is reduced toward a torque at the output rotating member after the downshift.
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公开(公告)号：US09540010B2
公开(公告)日：2017-01-10
申请号：US14861116
申请日：2015-09-22
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masahide Ichikawa , Tomohiro Asami
CPC classification number: B60W30/18072 , B60W10/06 , B60W10/10 , B60W10/11 , B60W2030/18081 , B60W2030/1809 , B60W2710/0644 , B60W2710/1005 , Y02T10/76
Abstract: A control system is for a vehicle. The control system includes an electronic control unit configured to perform a coast downshift, and execute blipping control during performance of the coast downshift. The electronic control unit is configured to determine whether blipping abnormality occurs. The electronic control unit is configured to disengage an engagement element on an engagement side when the blipping abnormality occurs during the performance of the coast downshift. The electronic control unit is configured to increase a speed of the engine in the blipping control. The blipping abnormality is a state that the blipping control is not executed normally during the performance of the coast downshift. The engagement element on the engagement side is an engagement element that is changed from a disengaged state to an engaged state in the coast downshift.
Abstract translation: 控制系统用于车辆。 该控制系统包括一个电子控制单元，该电子控制单元被配置为执行惯性降档，并且在执行滑行降挡期间执行滑动控制。 电子控制单元被配置为确定是否发生闪烁异常。 电子控制单元被配置为当在滑行降档期间发生闪烁异常时，使啮合元件在接合侧上脱离。 电子控制单元被配置为在闪光控制中增加发动机的速度。 闪烁异常是在执行滑行降挡期间不正常执行闪光控制的状态。 接合侧的接合元件是在滑行降档时从分离状态变换为接合状态的接合元件。
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