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公开(公告)号：US10279673B2
公开(公告)日：2019-05-07
申请号：US15571526
申请日：2015-06-03
Applicant: Nissan Motor Co., Ltd.
Inventor： Atsushi Tsukizaki , Ryohey Toyota
IPC: B60K6/442 , B60K6/547 , B60L15/20 , F16H61/02 , B60W10/06 , B60W10/08 , B60W10/11 , B60W30/19 , B60W20/30 , B60W20/20
Abstract: A mode transition control device is provided for a hybrid vehicle. The mode transition control device reduces a sensation of discomfort that may be imparted to a driver at a time of a mode transition from a series traveling mode to a parallel traveling mode during traveling. During mode transition from the series traveling mode to the parallel traveling mode in a hybrid vehicle, a gear shift stage is selected such that a rotational speed change amount of an internal combustion engine accompanying mode transition is less than or equal to a predetermined threshold value.
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公开(公告)号：US10183569B2
公开(公告)日：2019-01-22
申请号：US15579654
申请日：2015-06-24
Applicant: Nissan Motor Co., Ltd.
Inventor： Ryohey Toyota , Masato Koga
IPC: B60K6/26 , B60K6/36 , B60K6/442 , B60K6/547 , B60W10/06 , B60W10/08 , B60W10/11 , B60W10/26 , B60W20/17 , B60W20/20 , B60W30/20
Abstract: A power generation control device is provided for a hybrid vehicle that prevents discomfort to an occupant in a traveling scenario in which stops and starts are repeated. The power generation control device includes a power generation controller that selectively carries out series power generation and idle power generation. In series power generation, a first motor/generator is used as the drive source and electric power is generated in a second motor/generator by an internal combustion engine. In idle power generation, electric power is generated in the second motor/generator by the internal combustion engine while the vehicle is stopped. The power generation controller sets a series power generation start threshold of the battery at which series power generation is started, and an idle power generation start threshold of the battery at which idle power generation is started. The series and idle power generation start thresholds are the same value.
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公开(公告)号：US09662998B2
公开(公告)日：2017-05-30
申请号：US14646022
申请日：2013-10-31
Applicant: Nissan Motor Co., Ltd.
Inventor： Ryohey Toyota
IPC: B60L15/20 , B60L7/24 , F16H61/16 , B60L7/14 , B60L7/18 , B60L7/26 , B60L11/12 , B60L11/14 , F16H61/10
CPC classification number: B60L15/2054 , B60L7/14 , B60L7/18 , B60L7/24 , B60L7/26 , B60L11/123 , B60L11/14 , B60L11/18 , B60L15/2009 , B60L2210/40 , B60L2240/12 , B60L2240/14 , B60L2240/26 , B60L2240/421 , B60L2240/423 , B60L2240/486 , B60L2240/507 , B60L2250/26 , B60L2270/145 , F16H61/10 , F16H61/16 , Y02T10/6217 , Y02T10/645 , Y02T10/7077 , Y02T10/7241 , Y02T10/7275 , Y10S903/945
Abstract: A drivetrain from a drive source to drive wheel is provided with a motor-generator for implementing regeneration during deceleration and an automatic transmission having an engaging clutch as a shifting element. The electric vehicle has a gear shifting controller that is programmed to assess whether to grant gear shifting permission based on whether a deceleration grade difference occurring as a result of a reengagement gear shifting is less than a prescribed acceptable deceleration fluctuation when a reengagement gear shift request involving disengaging or engaging the meshing clutch is made during deceleration or regeneration. Shifting is initiated according to the gear-shift request if a decision to grant gear shifting permission is made.
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公开(公告)号：US10584789B2
公开(公告)日：2020-03-10
申请号：US16329591
申请日：2017-08-07
Applicant: Nissan Motor Co., Ltd.
Inventor： Ryohey Toyota , Tomoyuki Nakano , Hiromu Terai , Akira Takano , Kouhei Toyohara
IPC: F16H59/36 , F16H59/50 , F16H61/06 , F16H61/662 , F16H61/00
Abstract: A control method of a continuously variable transmission includes supplying oil pressure to a line-pressure oil passage and a secondary pulley oil chamber by a source pressure oil pump, controlling a flow of oil into and from a primary pulley oil chamber by an electric oil pump arranged in an oil passage between the primary pulley oil chamber and the secondary pulley oil chamber, and limiting a discharge flowrate of the electric oil pump to an amount smaller than a discharge flowrate of the source pressure oil pump.
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公开(公告)号：US20150377346A1
公开(公告)日：2015-12-31
申请号：US14768511
申请日：2013-12-27
Applicant: NISSAN MOTOR CO., LTD.
Inventor： Atsushi Tsukizaki , Ryohey Toyota , Toshifumi Hibi , Yutaka Kaneko
IPC: F16H61/02
CPC classification number: F16H61/0213 , B60L15/20 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/486 , B60L2270/145 , B60W10/10 , F16H61/10 , F16H2061/022 , F16H2061/0227 , Y02T10/645 , Y02T10/72 , Y02T10/7275
Abstract: A shift control device for an electrically driven vehicle, which is installed in the electrically driven vehicle including a motor as a drive source and an automatic transmission coupled to an output shaft of the motor, has a shift controller that performs shifting of the automatic transmission using a previously set shift line. The shift controller has, as the shift line, an electricity consumption prioritized shift line with priority placed to improve electricity consumption rate, and a driving force prioritized shift line with priority placed to suppress the frequency of shifting. The driving force prioritized shift line is used for a predetermined time after completion of the shift control using the electricity consumption prioritized shift line.
Abstract translation: 一种用于电动车辆的变速控制装置，其安装在电动车辆中，其包括作为驱动源的电动机和联接到电动机的输出轴的自动变速器，具有变速控制器，其使用 先前设定的换档线。 作为换档线，变速控制器具有优先设置的用电优先换档线，以提高电力消耗率，并且驱动力优先排列换档线以抑制换档频率。 在使用电力消耗优先移位线完成变速控制之后，将驱动力优先换档线用于预定时间。
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Patent Agency Ranking
公开(公告)号：US20150038296A1
公开(公告)日：2015-02-05
申请号：US14381757
申请日：2013-02-13
Applicant: NISSAN MOTOR CO., LTD.
Inventor： Ryohey Toyota
IPC: B60W10/11 , B60W10/184
CPC classification number: B60W10/11 , B60K6/387 , B60K6/445 , B60T2201/04 , B60T2270/604 , B60W10/02 , B60W10/06 , B60W10/08 , B60W10/105 , B60W10/184 , B60W20/00 , B60W20/30 , B60W30/19 , B60W2710/105 , B60Y2300/89 , F16H61/08 , F16H2061/0496 , Y02T10/6239 , Y02T10/6286 , Y02T10/76 , Y10T477/644
Abstract: A shift control device for an electric vehicle that is arranged to perform a downshift by a combination of a disengagement of a frictional element and an engagement of an engagement element, and a shift control means configured to perform a shift control of the automatic transmission, the shift control device includes: a regenerative cooperative brake control means which is configured to perform a regenerative cooperative brake control by a switching to increase a frictional torque of a frictional brake device provided to the driving wheel to follow a decrease of a regenerative torque when the regenerative torque by the electric vehicle is decreased, the shift control means setting a timing of a start of a coast downshift to disengage the frictional element, at least to a timing after a timing at which the switching of the regenerative cooperative brake control is started.
Abstract translation: 一种电动车辆的变速控制装置，其被配置为通过摩擦元件的分离和接合元件的接合的组合来执行降档;以及变速控制装置，被配置为执行自动变速器的变速控制， 变速控制装置包括：再生协调制动控制装置，其被配置为通过切换执行再生协调制动控制，以增加设置到驱动轮的摩擦制动装置的摩擦转矩，以在再生时产生再生转矩的降低 电动车辆的转矩减小，变速控制装置至少设定开始再生协调制动控制的切换的定时之后的定时，设定滑行降档开始的定时以使摩擦元件脱离。
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公开(公告)号：US10760682B2
公开(公告)日：2020-09-01
申请号：US15560563
申请日：2015-04-14
Applicant: Nissan Motor Co., Ltd.
Inventor： Atsushi Tsukizaki , Masato Koga , Hiroyuki Fukuda , Ryohey Toyota
Abstract: A drive system is provided with a first motor generator as a power source, and a multistage gear transmission for changing the speed of output from the first motor generator and transmitting the output to drive wheels. The multistage gear transmission has a plurality of engagement clutches as shifting elements that are meshingly engaged upon movement from a disengaged position. This hybrid vehicle is provided with a start control device where, when a start clutch has been engaged while the vehicle is stopped, the start control device maintains the engagement of the start clutch for a duration that includes when the vehicle is stopped and until the next vehicle start.
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公开(公告)号：US10458545B2
公开(公告)日：2019-10-29
申请号：US16322574
申请日：2016-08-04
Applicant: Nissan Motor Co., Ltd.
Inventor： Ryohey Toyota , Hiromu Terai , Tomoyuki Nakano
IPC: F16H61/662 , F16H9/18 , F16H61/00 , F16H63/06
Abstract: A continuously variable transmission has a primary pulley hydraulic chamber, a secondary pulley hydraulic chamber, a first oil passage connected to the secondary pulley hydraulic chamber, a second oil passage connected to the primary pulley hydraulic chamber, the second oil passage branching from the first oil passage, an electric oil pump provided on the second oil passage so as to allow oil to flow into and flow out from the primary pulley hydraulic chamber, and an oil discharge mechanism configured to discharge oil outside the second oil passage, the oil being to be supplied to the primary pulley hydraulic chamber by the electric oil pump.
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公开(公告)号：US20190257413A1
公开(公告)日：2019-08-22
申请号：US16329531
申请日：2017-08-07
Applicant: Nissan Motor Co., Ltd.
Inventor： Ryohey Toyota , Tomoyuki Nakano , Hiromu Terai , Akira Takano , Kouhei Toyohara
IPC: F16H61/00 , F16H61/662
Abstract: A control method of a continuously variable transmission includes supplying oil pressure to a secondary pulley oil chamber by a source pressure oil pump, and controlling a flow of oil into and from a primary pulley oil chamber by an electric oil pump arranged in an oil passage between the primary pulley oil chamber and the secondary pulley oil chamber. After start-up of the source pressure oil pump, an operation of the electric oil pump is restricted until the oil is filled in the oil passage on the secondary pulley oil chamber side of the electric oil pump. The operation of the electric oil pump is permitted when rotation speed of the electric oil pump reaches a predetermined rotation speed.
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公开(公告)号：US10232698B2
公开(公告)日：2019-03-19
申请号：US15580707
申请日：2015-06-09
Applicant: Nissan Motor Co., Ltd.
Inventor： Tomohiro Miyagawa , Masato Koga , Atsushi Tsukizaki , Ryohey Toyota
IPC: B60K6/442 , B60W10/08 , B60W10/10 , B60W20/13 , B60W20/20 , B60W20/30 , B60K6/547 , B60L11/14 , B60W50/00 , B60W10/02 , B60W10/06 , B60W20/10 , B60W30/00
Abstract: A mode transition control device a hybrid vehicle has a transmission control unit that prevents a second power generation system from overheating while traveling in a series HEV mode. When a battery is at a power generation request threshold value or lower, the vehicle travels in a “series HEV mode,” in which the first electric motor is utilized as a drive source and receives electrical power from the second motor/generator and the battery. The transmission control unit controls the traveling mode to transition from the “series HEV mode” to a “parallel HEV mode” when the vehicle speed has reached a switchover vehicle speed. When a temperature rise of the second power generation system is predicted while traveling in the “series HEV mode,” the transmission control unit changes the switchover vehicle speed to a slower switchover vehicle speed that was used prior to a determination of the temperature rise.
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