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公开(公告)号：US10024421B2
公开(公告)日：2018-07-17
申请号：US15514286
申请日：2015-10-02
发明人： Kazuyuki Noda , Yoshimitsu Hyodo , Kousuke Tanaka , Aito Ide , Kota Fujii , Atsushi Tabata , Ryuji Ibaraki , Yuji Yasuda , Haruhisa Suzuki , Koichi Okuda
摘要： A hydraulic pressure control device of a vehicle driving device, the hydraulic pressure control device includes a range switcher having a first signal solenoid valve capable of supplying a first signal pressure and a spool switchable between a first position reached via the first signal pressure and a second position reached via a biasing force of a biasing member.
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公开(公告)号：US09945472B2
公开(公告)日：2018-04-17
申请号：US15126882
申请日：2015-03-30
发明人： Yuki Yamada , Junji Matsushita , Takeshi Horie , Keita Imai , Koichi Okuda , Hidehiko Bansyoya , Kazuyuki Shiiba , Tooru Matsubara , Kuniaki Ishii
CPC分类号： F16H57/0471 , B60K6/365 , B60K6/405 , B60K6/445 , B60Y2200/92 , B60Y2306/03 , B60Y2400/80 , B60Y2410/10 , F16H57/021 , F16H57/04 , F16H57/0423 , F16H57/0424 , F16H57/0426 , F16H2057/02034 , Y10S903/91 , Y10S903/952
摘要： A lubricating structure for a transmission includes: a case that includes a center support fixation portion that extends from the inner peripheral surface toward the radially inner side, and that houses the transmission on the first side of the center support fixation portion in the axial direction of the transmission; a center support that is press-fitted into the center support fixation portion, that rotatably supports an input shaft of the transmission, and that rotatably supports a clutch drum of the transmission; a bearing provided between the clutch drum and the center support in the axial direction; an oil reservoir portion formed on the center support on the second side of the center support fixation portion in the axial direction to open on the upper side in the vertical direction, the second side being opposite to the first side; and an oil passage formed in the center support, one end of the oil passage opening in the oil reservoir portion, and the other end of the oil passage opening in a space between the clutch drum and the center support in the axial direction.
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公开(公告)号：US09695929B2
公开(公告)日：2017-07-04
申请号：US15124572
申请日：2015-03-02
发明人： Katsunori Miyoshi , Kenji Sasaki , Keisuke Omuro , Koichi Okuda , Masafumi Yamamoto , Keita Imai
CPC分类号： F16H57/0484 , B60K6/365 , B60K6/442 , B60K6/547 , B60Y2200/92 , B60Y2306/03 , B60Y2400/73 , F16D1/06 , F16H57/0025 , F16H57/04 , F16H57/0426 , F16H57/043 , F16H57/0471 , F16H57/0479 , F16H57/08 , F16H57/082 , Y10S903/945
摘要： A speed change device includes a power transfer shaft, a tubular shaft member, and a planetary gear mechanism that has a carrier. An in-shaft oil passage is formed in the power transfer shaft. A radially inner portion of the carrier and the tubular shaft member are splined to each other. An inside opening portion of a guide oil passage is formed in a non-spline portion of the radially inner portion. A target race member of a thrust bearing is disposed so as to abut against the carrier. The radially innermost position of the non-spline portion is on the radially outer side of the radially outermost position of a spline engagement portion. An oil receiving portion is formed by the tubular shaft member, the non-spline portion, and the target race member.
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公开(公告)号：US09482338B2
公开(公告)日：2016-11-01
申请号：US14682499
申请日：2015-04-09
发明人： Hideharu Nohara , Toshio Sugimura , Tooru Matsubara , Koichi Okuda , Kota Fujii , Kazuyuki Noda , Kousuke Tanaka
CPC分类号： F16H61/2807 , F16H61/0025 , F16H61/0206 , F16H61/061 , F16H61/30 , Y02T10/7258
摘要： When a user performs an operation to switch from a forward range to a reverse range, an ECU switches an oil passage (referred to hereafter as a “B2 pressure supply source oil passage”), through which oil pressure is supplied to a brake, from a first oil passage to a second oil passage while engaging the same brake. At this time, in consideration of a response delay in the oil pressure in the second oil passage, the ECU switches the B2 pressure supply source oil passage from the first oil passage to the second oil passage after a predetermined time α elapses from the point at which the user performs the forward-reverse switch operation (in other words, after waiting for the oil pressure in the second oil passage to reach a threshold pressure) rather than at the point at which the user performs the forward-reverse switch operation.
摘要翻译： 当用户进行从前进范围切换到倒档范围的操作时，ECU将油压供给制动器的油路（以下称为“B2压力供给源油路”）切换为 第一油通道，同时接合同一个制动器。 此时，考虑到第二油路中的油压的响应延迟，ECU经过预定时间α之后，将B2压力供给源油通道从第一油路切换到第二油路 用户进行正向倒车切换动作（换句话说，等待第二油路中的油压达到阈值压力），而不是在用户进行正转切换动作的时刻进行。
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公开(公告)号：US10161507B2
公开(公告)日：2018-12-25
申请号：US15073097
申请日：2016-03-17
发明人： Kota Fujii , Koichi Okuda , Atsushi Tabata , Haruhisa Suzuki , Tooru Matsubara , Kazuyuki Noda , Yoshimitsu Hyodo , Kousuke Tanaka
IPC分类号： F16H61/00 , F16H61/02 , B60K6/547 , F16H61/16 , B60K6/365 , B60K6/383 , B60K6/387 , B60K6/445 , F16H3/72 , F16H59/10 , F16H61/12 , B60K6/38 , F16H3/66 , F16H3/44
摘要： In a non-forward range, the same gear position as a forward first gear position is established in a stepped transmission. A hydraulic controller includes a second linear solenoid valve and third linear solenoid valve that respectively supply hydraulic pressure to a second clutch and first brake, and a selector valve that is provided in an oil passage upstream of the second and third linear solenoid valves and that switches between a state where hydraulic pressure is supplied to the oil passage and a state where supply of hydraulic pressure is cut off. When the non-forward range is set or when a vehicle is moving backward, the selector valve cuts off supply of hydraulic pressure to the oil passage. Thus, when there is a failure in the second or third linear solenoid valve, it is possible to suitably establish a gear position wherein the vehicle is not allowed to move backward.
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公开(公告)号：US12085555B2
公开(公告)日：2024-09-10
申请号：US17369494
申请日：2021-07-07
发明人： Atsushi Tabata , Ken Imamura , Kota Fujii , Koichi Okuda
CPC分类号： G01N33/2888 , F15B19/00 , F16H57/0405 , G01N21/255 , G01N33/2841
摘要： A deterioration estimation device includes a storage device and an execution device. The storage device is configured to store mapping data defining a mapping that outputs an output variable indicating the degree of deterioration of oil when an input variable is input. The mapping includes, as the input variable, a color variable that is a variable indicating a color of the oil and a hydrogen ion variable that is a variable indicating a hydrogen ion concentration of the oil. The execution device is configured to execute an acquisition process that is a process of acquiring the input variable and a calculation process of inputting the input variable acquired through the acquisition process to the mapping to output a value of the output variable.
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公开(公告)号：US12085032B2
公开(公告)日：2024-09-10
申请号：US18434226
申请日：2024-02-06
发明人： Atsushi Tabata , Koichi Okuda , Nobuhiko Satake , Daiki Sato
IPC分类号： F02D41/02
CPC分类号： F02D41/0235 , F02D2200/0802
摘要： A controller for an engine includes processing circuitry. The processing circuitry executes an obtaining process that obtains a catalyst temperature, which is a temperature of a catalyst. The processing circuitry executes a setting process that sets a target air-fuel ratio that is a target value of an air-fuel ratio in the cylinder. The temperature of the catalyst at which an efficiency of nitrogen oxide reduction by the catalyst is the highest is referred to as a prescribed temperature. In the setting process, the processing circuitry sets the target air-fuel ratio to be higher when the catalyst temperature is a first value that is lower than the prescribed temperature, than when the catalyst temperature is a second value that is lower than or equal to the prescribed temperature and higher than the first value.
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公开(公告)号：US12059957B2
公开(公告)日：2024-08-13
申请号：US17804139
申请日：2022-05-26
发明人： Atsushi Tabata , Koichi Okuda , Tatsuya Imamura , Yohei Habata , Koji Takaira
摘要： A vehicle driving apparatus includes: an engine; first and second rotary electric machines; a fluid transmission device including an input-side rotary element to which the engine and the first rotary electric machine are connected; and a control device configured to control an operation point of the engine by adjusting an electrical path amount in an electrical path between the first and second rotary electric machines. When a certain running mode is established, the control device is configured to correct the electrical path amount to an increased electrical path amount while maintaining an power of the engine requested by an operation of a vehicle driver, and to drive the second rotary electric machine, while controlling an output torque of the first rotary electric machine such that the electrical path amount transferred from the first rotary electric machine to the second rotary electric machine becomes the increased electrical path amount.
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公开(公告)号：US12026992B2
公开(公告)日：2024-07-02
申请号：US17106895
申请日：2020-11-30
发明人： Atsushi Tabata , Koichi Okuda , Tooru Matsubara , Hiromasa Tatsushiro , Kota Fujii , Yuuki Makino
CPC分类号： G07C5/0808 , B60R16/0234 , F16H57/00 , G06N20/00 , G07C5/006 , F16H61/30
摘要： A vehicle control device performs learning to correct a parameter used in a control program for controlling a vehicle. The vehicle control device stores learning data obtained by the learning in a storage unit. The vehicle control device determines whether or not a part controlled by the parameter has been replaced, and resets the learning data stored in the storage unit when it is determined that the part has been replaced. The vehicle control device determines that the part has been replaced based on an adjustment that is performed upon replacement of the part. The vehicle control device quickly mitigates degradation of the controllability of the vehicle after replacement of the part.
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公开(公告)号：US12011994B2
公开(公告)日：2024-06-18
申请号：US18347066
申请日：2023-07-05
发明人： Yuto Masuda , Yusuke Suzuki , Koichi Okuda , Toshihisa Mizutani , Taiki Owari
CPC分类号： B60K17/165 , B60K1/02 , F16H48/05 , F16H2048/02 , F16H2048/04 , F16H2048/082
摘要： The driving apparatus comprising a first motor, a first gear mechanism having a first input shaft and a first output shaft connected to the first motor, a second motor, and a second gear mechanism having a second input shaft and a second output shaft connected to the second motor. The first gear mechanism is configured such that the first input shaft and the first output shaft are in an intersecting or twisted position, and the second gear mechanism is configured such that the second input shaft and the second output shaft are in an intersecting or twisted position.
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