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公开(公告)号：US12025087B2
公开(公告)日：2024-07-02
申请号：US18172745
申请日：2023-02-22
发明人： Tomohiro Chimbe , Shinji Shibuya , Masahiro Fueki , Masaki Ishizeki , Miya Yamada , Kenji Kamio
CPC分类号： F02N11/0851 , F16D48/066 , F16D2500/1026 , F16D2500/10412 , F16D2500/3028 , F16D2500/306 , F16D2500/3122
摘要： A control device of a vehicle, the vehicle includes an engine, a hydraulic clutch disposed on a power transmission path between the engine and driving wheels, a starter motor for use in startup of the engine, an electric oil pump device discharging hydraulic oil generating oil pressure supplied to the clutch, and a power supply device supplying electric power driving each of the starter motor and the electric oil pump device. The control device includes a startup control unit that performs starter startup control of starting discharge of the hydraulic oil by the electric oil pump device after determining that output voltage of the power supply device or input voltage of the electric oil pump device is higher than or equal to a fixed voltage after completion of cranking by the starter motor upon startup of the engine using the starter motor.
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公开(公告)号：US20230246582A1
公开(公告)日：2023-08-03
申请号：US17606510
申请日：2020-02-06
发明人： Masahiro Ishijima , Masahiro Fueki , Shinji Shibuya , Guodong Tan , Taiki Ishida , Tomohiro Chimbe
CPC分类号： H02P29/0027 , F16D48/00 , F16D2048/0227
摘要： An electric oil pump for automobile transmission clutch engagement includes: a temperature sensor that measures a temperature of oil supplied to an oil supply destination relating to clutch engagement of an automobile transmission; an oil pump drive motor; a current determination part that determines a current value output to the oil pump drive motor to a predetermined current value determined such that the oil pump drive motor is capable of being driven without stopping in a case where the temperature is equal to or less than a predetermined temperature at which a torque of the oil pump drive motor becomes smaller than a load of the oil pump drive motor; and an oil pump that supplies oil to the oil supply destination by the oil pump drive motor being driven based on the determined current value.
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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
发明人： Takashi Miura , Seiji Masunaga , Tomohiro Chimbe , Norihiro Tsukamoto , Tomohiro Asami , Yuji Kajiyama , Kazuki Imanishi
摘要： 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：US10167947B2
公开(公告)日：2019-01-01
申请号：US15643943
申请日：2017-07-07
发明人： Tomohiro Chimbe , Norihiro Tsukamoto , Keisuke Ota , Tomohiro Asami , Yuji Kajiyama , Daiki Fukuda
摘要： 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：US10161510B2
公开(公告)日：2018-12-25
申请号：US15656003
申请日：2017-07-21
发明人： Keisuke Ota , Norihiro Tsukamoto , Tomohiro Chimbe , Ayumu Sagawa , Hiromasa Takai , Masataka Hirano
摘要： When there is a request for a skip downshift that transitionally establishes an intermediate speed position, a surge hydraulic pressure at the start of a torque phase during shift control toward the intermediate speed position is set so as to be lower than a surge hydraulic pressure at the start of a torque phase during shift control toward a required speed position.
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公开(公告)号：US11926312B2
公开(公告)日：2024-03-12
申请号：US17674317
申请日：2022-02-17
发明人： Yoshio Hasegawa , Tomohiro Chimbe , Shogo Kawai
CPC分类号： B60W20/30 , B60W20/20 , B60W40/09 , B60W2510/081 , B60W2510/10 , F16H2061/0481 , F16H2061/0485 , F16H2061/0488
摘要： In a case where a predetermined switching operation to a state in which a traveling position is selected from a state in which another shift position of a mechanical transmission device is selected is performed by a driver, a quick engagement command to quickly engage a predetermined engagement device is performed in a state in which output of a predetermined torque is stopped, and then a rapid garage control of increasing a rotation speed of an electric motor at a rotation speed equal to or higher than a predetermined rotation speed is executed. The rapid garage control is executed in a case where a predetermined start condition is established.
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公开(公告)号：US10274079B2
公开(公告)日：2019-04-30
申请号：US15644252
申请日：2017-07-07
摘要： An electronic control unit is configured to set a target torque phase time which is used in torque phase control based on an output shaft torque difference. The electronic control unit sets the target torque phase time to be longer when the output shaft torque difference is large than when the output shaft torque difference is small. Accordingly, since the target torque phase time can be appropriately set, it is possible to achieve both of preventing a sudden change in driving force and torsion vibration of an output shaft and preventing a decrease in drivability due to hesitation at the same time. Sudden change in driving force and torsion vibration of the output shaft occur when the difference in driving force between before and after a gear shift is large. Hesitation occurs when the difference in driving force between before and after the gear shift is small.
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公开(公告)号：US11052904B2
公开(公告)日：2021-07-06
申请号：US16789577
申请日：2020-02-13
发明人： Tomohiro Chimbe , Keisuke Ota , Yuji Kajiyama , Daiki Fukuda , Kazuki Imanishi , Takuma Sugino
摘要： When starting a skip downshift, a controller for an automatic transmission disengages two or more engagement elements that are in an engaged state. The disengaging two or more engagement elements includes setting a first engagement element, which is one of the two or more engagement elements that are disengaged and is used to form an intermediate gear stage having a lower transmission ratio than a post-shifting gear stage, to an engagement preparation state that maintains a state immediately before the engaged state. Subsequently, the controller engages a second engagement element, which is used to form both the intermediate gear stage and the post-shifting gear stage, and temporarily increases engagement pressure of the first engagement element. The controller disengages the first engagement element and engages a third engagement element, which is used to form the post-shifting gear stage, to form the post-shifting gear stage.
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公开(公告)号：US10132406B2
公开(公告)日：2018-11-20
申请号：US15655304
申请日：2017-07-20
发明人： Keisuke Ota , Norihiro Tsukamoto , Tomohiro Chimbe , Ayumu Sagawa , Daiki Fukuda , Yuji Kajiyama
IPC分类号： F16H61/06 , B60W30/19 , B60W10/04 , F16H61/686 , F16H61/08 , F16H59/40 , F16H59/46 , F16H61/04
摘要： When an inertia phase has started while torque phase control is being executed, the torque phase control is ended, a target torque capacity of an engaging element in inertia phase control is corrected on the basis of a difference between the target torque capacity of the engaging element at the time when the inertia phase has started and the target torque capacity of the engaging element at the time when the torque phase control has completed (or a difference between the target torque capacity of the engaging element at the time when the inertia phase has started and the target torque capacity of the engaging element, which is set at the time when the inertia phase control has started), and the inertia phase control is started.
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公开(公告)号：US11280403B2
公开(公告)日：2022-03-22
申请号：US17318507
申请日：2021-05-12
发明人： Shingo Akita , Tomohiro Chimbe , Shingo Eto , Nobufusa Kobayashi
摘要： A control device executes, when a jump-down shifting is executed, shifting control in which, after engaging elements establishing a pre-shifting gear position are released, an intermediate gear position that is a gear position between the pre-shifting gear position and a post-shifting gear position is established, and after the intermediate gear position is established, the post-shifting gear position is established. When an engaging element able to reduce a rotation speed difference between two rotating bodies connected by engaging elements establishing the intermediate gear position is regarded as a speed difference reducing element, the control device executes a pre-engaging process for generating a torque capacity in the speed difference reducing element while the shifting control is being executed and before establishing the intermediate gear position.
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