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公开(公告)号：US20210148457A1
公开(公告)日：2021-05-20
申请号：US16986346
申请日：2020-08-06
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takaaki TOKURA , Katsumi KONO , Takeshi YASUDA
Abstract: A gear stage choosing apparatus that chooses a gear stage of a stepped transmission of a vehicle includes a storage unit configured to store a shift map containing a relationship between vehicle speed and gear stage, a determination unit configured to determine a gear stage associated with an estimated vehicle speed after a lapse of a first period of time from current time based on the shift map, an evaluation unit configured to evaluate fuel efficiency in some gear stages, including the determined gear stage and one or more gear stages higher or lower in less than or equal to a specific number of gear steps than the determined gear stage, of multiple gear stages, and a choosing unit configured to choose a gear stage selected from among the some gear stages based on the fuel efficiency as a gear stage to which a current gear stage is changed.
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公开(公告)号：US20200019196A1
公开(公告)日：2020-01-16
申请号：US16506036
申请日：2019-07-09
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takaaki TOKURA , Katsumi KONO , Masato KAIGAWA , Masato MATSUBARA , Hitoshi MATSUNAGA , Akira HINO
IPC: G05D16/20 , F16K31/36 , F16H61/4069
Abstract: A control apparatus for controlling a linear solenoid by controlling a driving current supplied to the linear solenoid through a feedback control. The feedback control is executed by a feedback control system having parameters that are determined in accordance with an ILQ design method. In a frequency characteristic of a gain of a transfer function representing a ratio of an output to a disturbance in the feedback control system, the gain is lower than 0[dB] throughout all frequency ranges.
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公开(公告)号：US20220306074A1
公开(公告)日：2022-09-29
申请号：US17653726
申请日：2022-03-07
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Katsumi KONO , Tomoharu MAEDA , Takaaki TOKURA , Takeshi YASUDA
Abstract: A driving control device that is mounted on a vehicle including an electric motor and an internal combustion engine as power sources includes a processor. The processor is configured to: acquire a destination of the vehicle; acquire a past driving history from a point of departure to the destination; acquire a desired state of charge that is a state of charge of a battery desired when the vehicle arrives at the destination; estimate a predicted amount of regenerative energy based on the driving history; set a first section and a second section based on the predicted amount of regenerative energy and the desired state of charge; and control driving of the vehicle based on the first section and the second section.
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公开(公告)号：US20210179063A1
公开(公告)日：2021-06-17
申请号：US17016096
申请日：2020-09-09
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takaaki TOKURA , Katsumi KONO , Takeshi YASUDA
Abstract: A travel control device is mounted on a vehicle including an electric motor and an internal combustion engine that are power sources and a storage battery that stores energy for driving the electric motor and regenerative energy recovered by regenerative braking of the electric motor. The travel control device includes an electronic control device configured to create a speed profile in which a speed of the vehicle is predicted, estimate a predicted amount of the regenerative energy to be recovered, based on the speed profile, and decide the power source to be used for traveling, based on the predicted amount of the regenerative energy and thermal information indicating a demand related to heat of the vehicle.
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公开(公告)号：US20220181055A1
公开(公告)日：2022-06-09
申请号：US17457821
申请日：2021-12-06
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takaaki TOKURA , Katsumi KONO , Takeshi YASUDA , Tomohiro KONDO , Tomoyuki KOIKE , Masanori MATSUBARA , Yasuhiro TANAKA
Abstract: A controller executes a dither control that cyclically increases and decreases an exciting current in a linear solenoid valve so as to vibrate a spool of the linear solenoid valve. A vibration cycle of the spool obtained through the dither control is referred to a dither cycle. The dither control includes a first dither control that vibrates the spool in a first dither cycle and a second dither control that vibrates the spool in a second dither cycle that is shorter than the first dither cycle. The controller executes the first dither control and the second dither control when an oil temperature of the hydraulic oil is between a first oil temperature and a second oil temperature that is higher than the first oil temperature.
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Patent Agency Ranking
公开(公告)号：US20220126810A1
公开(公告)日：2022-04-28
申请号：US17496422
申请日：2021-10-07
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takaaki TOKURA , Katsumi KONO , Takeshi YASUDA
Abstract: A driving control device mounted on a vehicle includes a processor. The processor is configured to create a speed profile. The processor is configured to approximate the speed profile by a predetermined approximate model and estimate a predicted amount of regenerative energy based on an approximation result. The processor is configured to set, based on the predicted amount of regenerative energy, a first region and a second region in the approximation result as a region in which the vehicle travels using an electric motor, the first region being a region from a timing of starting of the vehicle until first time has elapsed from the timing of starting of the vehicle, and the second region being a region from a timing of deceleration of the vehicle until second time has elapsed from the timing of deceleration of the vehicle.
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公开(公告)号：US20200164876A1
公开(公告)日：2020-05-28
申请号：US16695390
申请日：2019-11-26
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takaaki TOKURA , Hideki TAKAMATSU , Hirofumi SATO , Shojiro SUGA , Katsumi KONO , Akira HINO , Masato MATSUBARA
Abstract: A control device of a vehicle with a stepped automatic transmission has: a gradient acquiring part; a driving force calculating part; a future change estimating part; and a shift control part. The shift control part prohibits change of the gear stage when the speed of change of the speed or acceleration of the vehicle in the future if the maximum driving force applied, is within a reference range of speed of change where the occupants would not notice a change in speed or acceleration, and permits change of the gear stage when the speed of change of the speed or acceleration of the vehicle in the future if the maximum driving force applied, is outside the reference range of speed of change.
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公开(公告)号：US20240042987A1
公开(公告)日：2024-02-08
申请号：US18380369
申请日：2023-10-16
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takaaki TOKURA , Katsumi KONO , Takeshi YASUDA
CPC classification number: B60W10/08 , B60W10/18 , B60W20/11 , B60W20/20 , B60W40/105 , B60W30/18127 , B60W2720/103 , B60W2050/0028
Abstract: A driving control device mounted on a vehicle includes a processor. The processor is configured to create a speed profile. The processor is configured to approximate the speed profile by a predetermined approximate model and estimate a predicted amount of regenerative energy based on an approximation result. The processor is configured to set, based on the predicted amount of regenerative energy, a first region and a second region in the approximation result as a region in which the vehicle travels using an electric motor, the first region being a region from a timing of starting of the vehicle until first time has elapsed from the timing of starting of the vehicle, and the second region being a region from a timing of deceleration of the vehicle until second time has elapsed from the timing of deceleration of the vehicle.
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公开(公告)号：US20210138909A1
公开(公告)日：2021-05-13
申请号：US17096442
申请日：2020-11-12
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takaaki TOKURA , Katsumi KONO , Takeshi YASUDA
Abstract: A travel control device that is mounted on a vehicle including an electric motor and an internal combustion engine as a power source includes an electronic control unit configured to create a speed profile in which a speed of the vehicle at each time is predicted, approximate the speed profile with a predetermined approximation model and estimate a predicted amount of regenerative energy based on an approximation result, the regenerative energy being energy that is recoverable by regenerative braking of the electric motor, and determine the power source used for traveling based on the predicted amount of the regenerative energy.
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公开(公告)号：US20190179302A1
公开(公告)日：2019-06-13
申请号：US16213710
申请日：2018-12-07
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takaaki TOKURA , Naoya ISHIZAKI , Tomoharu MAEDA , Yushi SEKI , Hiroshi MAJIMA , Katsuya TERAHATA
Abstract: A vehicle remote operation system includes a controller correcting a map, which indicates a relationship between an operation amount of a reference vehicle and an operation amount of a vehicle to be operated, based on vehicle characteristic data of the vehicle to be operated, characteristic of the operation device being determined based on characteristic of an operation device of the reference vehicle, correcting an operation amount, which is indicated by the operation signal, in accordance with a characteristic of the vehicle to be operated by using the corrected map, and outputting a control signal indicating the corrected operation amount to the vehicle to be operated so that the vehicle to be operated can be operated in accordance with the corrected operation amount.
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