公开(公告)号：US20180180175A1

公开(公告)日：2018-06-28

申请号：US15738716

申请日：2016-06-13

Applicant: JATCO Ltd ,  NISSAN MOTOR CO., LTD.

Inventor： Mamiko INOUE ,  Hideshi WAKAYAMA

IPC: F16H61/04 ,  F16H61/70 ,  F16H61/662 ,  F16H37/02

CPC classification number: F16H61/04 ,  F16H3/66 ,  F16H9/18 ,  F16H37/022 ,  F16H61/66 ,  F16H61/662 ,  F16H61/66259 ,  F16H61/702 ,  F16H2037/023 ,  F16H2037/026 ,  F16H2061/6614 ,  F16H2200/0034 ,  F16H2200/2038

Abstract: A transmission includes a sub-transmission mechanism, a variator having lower shift responsiveness than the sub-transmission mechanism, and a controller configured to carry out a coordinated shift for changing a speed ratio of the variator in a direction opposite to a changing direction of a speed ratio of the sub-transmission mechanism as the sub-transmission mechanism is shifted so that a through speed ratio reaches a target through speed ratio. The controller sets a target speed ratio of the sub-transmission mechanism on the basis of the target through speed ratio and an actual speed ratio of the variator in carrying out the coordinated shift.

公开(公告)号：US20180180178A1

公开(公告)日：2018-06-28

申请号：US15738904

申请日：2016-06-13

Applicant: JATCO Ltd ,  NISSAN MOTOR CO., LTD.

Inventor： Mamiko INOUE ,  Tomonari UCHIYAMA ,  Hideshi WAKAYAMA

IPC: F16H61/70 ,  F16H61/00 ,  F16H61/662 ,  F16H61/686 ,  F16H37/02

CPC classification number: F16H61/702 ,  F16H37/022 ,  F16H61/0021 ,  F16H61/66 ,  F16H61/662 ,  F16H61/686 ,  F16H2061/6614

Abstract: In a transmission, a controller sets a target line pressure to an offset target value, which is a value obtained by adding a positive offset amount to one of a target PRI pressure and a target SEC pressure, in a speed ratio range in which the offset target value is higher than the other at least during an inertia phase in a sub-transmission mechanism when a coordinated shift is carried out. At that time, the one of the target PRI pressure and the target SEC pressure is the target SEC pressure when a variator is downshifted by the coordinated shift while being the target PRI pressure when the variator is upshifted by the coordinated shift.

公开(公告)号：US20170021834A1

公开(公告)日：2017-01-26

申请号：US15124994

申请日：2015-02-26

Applicant: JATCO Ltd

Inventor： Yuzuru TOHTA ,  Hideshi WAKAYAMA ,  Mamiko INOUE ,  Takuichiro INOUE

IPC: B60W30/18 ,  B60W10/115 ,  B60W10/06

CPC classification number: B60W30/18 ,  B60W10/04 ,  B60W10/06 ,  B60W10/11 ,  B60W10/115 ,  B60W2400/00 ,  B60W2510/0638 ,  B60W2510/0657 ,  B60W2710/02 ,  B60W2710/0666 ,  B60W2710/10 ,  F16H37/022 ,  F16H61/0437 ,  F16H61/66259 ,  F16H2037/028 ,  F16H2061/0087 ,  F16H2061/0477 ,  Y10T477/6895

Abstract: An engine control device for a vehicle including a power train where a continuously variable transmission is coupled to an engine, includes engine torque control means configured to control the engine so as to obtain an basic engine torque corresponding to an operating state of the vehicle, and command means configured to command engine torque control means to increase an engine torque from the basic engine torque during a gear shifting from a first speed stage to a second speed stage. The continuously variable transmission includes a continuously variable transmission mechanism, an auxiliary transmission mechanism that includes at least a first engagement portion and a second engagement portion to achieve the gear shifting from the first speed stage to the second speed stage, and shift control means configured to set a target value of a transmission gear ratio of the entire continuously variable transmission mechanism and the auxiliary transmission mechanism based on the operating state of the vehicle to control the continuously variable transmission mechanism such that the target value is achieved.

Abstract translation: 一种用于车辆的发动机控制装置，包括：无级变速器与发动机连接的动力传动系，包括：发动机扭矩控制装置，被配置为控制发动机，以获得与车辆的运行状态相对应的基本发动机转矩;以及 指令装置，其构造成指令发动机扭矩控制装置，以在从第一速度档变速到第二档位期间从基本发动机扭矩增加发动机转矩。 无级变速器包括无级变速器机构，至少包括第一接合部和第二接合部的辅助变速机构，以实现从第一档位到第二档位的变速;以及变速控制单元， 基于车辆的运行状态设定整个无级变速机构和辅助变速机构的变速比的目标值，以控制无级变速机构，从而实现目标值。

公开(公告)号：US20160223080A1

公开(公告)日：2016-08-04

申请号：US15021439

申请日：2014-09-24

Applicant: JATCO LTD ,  NISSAN MOTOR CO., LTD.

Inventor： Mamiko INOUE ,  Takuichiro INOUE ,  Hiroyasu TANAKA

IPC: F16H61/70 ,  F16H37/02

CPC classification number: F16H61/70 ,  F16H37/021 ,  F16H61/662 ,  F16H2037/023 ,  F16H2061/0244 ,  F16H2061/6614

Abstract: A control device for a continuously variable transmission with an auxiliary transmission includes: a cooperative control section; and a depression shift control section, wherein when an actual transmission gear ratio of the variator at the judgment of the depression shift control is higher than a first transmission gear ratio set as a lowest value of a control of the transmission gear ratio, the depression shift control section configured to downshift the variator, and to set a target transmission gear ratio at the shift of the variator to a second transmission gear ratio which is a restriction value that is higher than the first transmission gear ratio.

Abstract translation: 一种用于具有辅助变速器的无级变速器的控制装置，包括：协调控制部分; 以及按压变速控制部，其中，当所述变换器在所述抑制换档控制的判断下的实际变速比高于设定为所述变速比的控制的最低值的第一变速齿轮比时， 控制部，其构成为降档，并将所述变换器的换档时的目标变速比设定为比所述第一变速比高的限制值的第二变速比。

公开(公告)号：US20160223081A1

公开(公告)日：2016-08-04

申请号：US15021451

申请日：2014-09-24

Applicant: JATCO LTD ,  NISSAN MOTOR CO., LTD.

Inventor： Mamiko INOUE ,  Takuichiro INOUE ,  Hiroyasu TANAKA

IPC: F16H61/70 ,  F16H37/02

CPC classification number: F16H61/70 ,  F16H37/021 ,  F16H61/08 ,  F16H61/662 ,  F16H61/702

Abstract: A control device for a continuously variable transmission with an auxiliary transmission includes: a cooperative control section being configured to shift the auxiliary transmission mechanism during the first inertia phase time period, and to shift the variator during the second inertia phase time period, when the cooperative control in which an input torque to the continuously variable transmission is equal to or smaller than a predetermined value in the cooperative control is judged, and being configured to shift the auxiliary transmission mechanism during the first inertia phase time period, and to shift the variator during the first inertia phase time period when the cooperative control in which the input torque to the continuously variable transmission is greater than the predetermined value is judged.

Abstract translation: 一种用于具有辅助变速器的无级变速器的控制装置包括：协调控制部分，其被配置为在第一惯性阶段时间段期间移动辅助传动机构，并且在第二惯性阶段期间移动变速器， 判定在协作控制中对无级变速器的输入转矩等于或小于预定值的控制，并且被配置为在第一惯性阶段时间段期间移动辅助传动机构，并且在第一惯性阶段期间移动变速器 判断其中对无级变速器的输入转矩大于预定值的协调控制的第一惯性相位时间段。

公开(公告)号：US20160146343A1

公开(公告)日：2016-05-26

申请号：US14778362

申请日：2014-03-24

Applicant: JATCO LTD

Inventor： Mamiko INOUE ,  Hiroyasu TANAKA ,  Masato MORI

IPC: F16H61/70 ,  F16H37/02

CPC classification number: F16H61/70 ,  F16H37/022 ,  F16H61/08 ,  F16H61/66259 ,  F16H2061/163 ,  F16H2061/6615

Abstract: A control unit comprises determining unit for determining whether or not a predetermined elapsed time condition is established after a shift has been performed to a specific gear position reached by engaging a specific frictional engagement element of a stepped transmission mechanism, and restricting unit for prohibiting the stepped transmission mechanism from performing a shift back to the specific gear position while allowing a continuously variable transmission mechanism to perform shifts so that an automatic transmission is controlled to a target speed ratio until the determining unit determines that the predetermined elapsed time condition is established.

Abstract translation: 控制单元包括确定单元，用于确定在通过接合阶梯式传动机构的特定摩擦接合元件达到的特定档位之后是否建立预定经过时间条件，以及用于禁止阶梯式传动机构的限制单元 传动机构从允许无级变速机构执行换挡的执行换档返回到特定齿轮位置，使得自动变速器被控制到目标速比直到确定单元确定预定的经过时间条件被建立为止。

公开(公告)号：US20160097450A1

公开(公告)日：2016-04-07

申请号：US14893252

申请日：2014-05-20

Applicant: JATCO LTD

Inventor： Masashi SATO ,  Hideshi WAKAYAMA ,  Mamiko INOUE ,  Kousuke WAKU ,  Hyuk PARK

IPC: F16H61/662 ,  F16H37/02

CPC classification number: F16H61/66231 ,  F16H37/021 ,  F16H37/022 ,  F16H61/66259 ,  F16H61/702 ,  F16H2037/023 ,  F16H2061/6615

Abstract: A transmission including a variator capable of continuously changing a speed ratio, a stepped transmission mechanism arranged in series with the variator and in which a gear position is switched and a shilling control unit executing stepped shifting repeatedly performing a shifting suppression phase and an upshift phase when a stepped upshift shifting condition is satisfied is provided, and the shifting control unit completes a change from an n-th gear position of the stepped transmission mechanism to an n+1 gear position if the stepped transmission mechanism is at the n-th gear position before the through speed ratio reaches a Highest speed ratio of the variator when the stepped shifting is performed.

Abstract translation: 一种变速器，其包括能够连续变速的变速器，与变速器串联布置的齿轮位置切换的阶梯式变速机构，以及先进式步进变速器执行变速抑制阶段和升挡阶段的先令式变速机构， 提供了升档换档条件，并且如果阶梯式变速机构处于第n档位，变速控制单元完成从阶梯式变速机构的第n档位到n + 1档位的变化 在通过变速比达到阶梯式变速时的变速器的最高变速比之前。

公开(公告)号：US20150247573A1

公开(公告)日：2015-09-03

申请号：US14430107

申请日：2013-09-03

Applicant: JATCO LTD ,  NISSAN MOTOR CO., LTD.

Inventor： Mamiko INOUE ,  Hiroyasu Tanaka ,  Takuichiro Inoue

IPC: F16H61/662 ,  F16H61/70

CPC classification number: F16H61/66259 ,  F16H59/38 ,  F16H61/04 ,  F16H61/702 ,  F16H2037/023 ,  F16H2061/66218

Abstract: A transmission controller determines whether or not an input rotation speed of a sub-transmission mechanism is stagnant and executes a feedback control by adding a rotation speed change rate feedback correction amount caused by a difference between a target input rotation speed change rate and an actual input rotation speed change rate of the sub-transmission mechanism to a rotation speed feedback correction amount if the input rotation speed is determined to be stagnant.

Abstract translation: 传动控制器确定副传动机构的输入转速是否停滞，并通过将由目标输入转速变化率和实际输入之间的差引起的转速改变率反馈校正量相加来执行反馈控制 如果确定输入转速停滞，则副传动机构的转速变化率到转速反馈校正量。

公开(公告)号：US20190024791A1

公开(公告)日：2019-01-24

申请号：US16069737

申请日：2017-01-10

Applicant: JATCO Ltd

Inventor： Kousuke WAKU ,  Incheol NA ,  Mamiko INOUE

IPC: F16H61/662 ,  F16H63/50 ,  F16H61/02 ,  F16H59/44 ,  F16H59/20

Abstract: In gear-shift control apparatus and method for a vehicular transmission, a variator which is interposed between an engine and driving wheels and which is capable of modifying a gear (speed) ratio continuously; a sub transmission which is installed in series with the variator and which is capable of switching a plurality of gear-shift stages through a replacement of engagement elements; and a transmission controller which performs a gear ratio control for the variator and a gear-shift stage control for the sub transmission are installed. During a deceleration through a second speed stage of the sub transmission, when the variator is a state in which the variator is at a lowest gear (speed) ratio, a down-shift in which the sub transmission is forced to perform the gear-shift from a second speed stage to a first speed stage, with the variator maintained at the lowest gear (speed) ratio.

公开(公告)号：US20170210373A1

公开(公告)日：2017-07-27

申请号：US15500274

申请日：2015-03-12

Applicant: JATCO Ltd

Inventor： Yoshinobu KAWAMOTO ,  Mamiko INOUE

IPC: B60W10/06 ,  B60K6/36 ,  B60W10/10

CPC classification number: B60W10/06 ,  B60K6/36 ,  B60K6/485 ,  B60K6/543 ,  B60K6/547 ,  B60L11/14 ,  B60W10/08 ,  B60W10/10 ,  B60W10/111 ,  B60W10/115 ,  B60W20/30 ,  B60W2050/0088 ,  B60W2510/108 ,  F02D29/02 ,  F02D29/06 ,  F02N11/04 ,  F16H61/00 ,  F16H61/061 ,  F16H61/66 ,  F16H63/50 ,  F16H2061/0087 ,  F16H2061/6614 ,  Y02T10/6226 ,  Y02T10/6286

Abstract: A control device for a vehicle is provided. The control device includes an automatic transmission constituted of a stepwise variable transmission mechanism configured to switch a plurality of shift stages by engagement and disengagement of a plurality of friction engaging elements, an engine as a driving source, a motor configured to assist a driving force of the engine, a hydraulic controller configured to supply a hydraulic pressure to control the engagement and the disengagement of the friction engaging element, and a control unit configured to control the automatic transmission to a target speed ratio through changing the shift stage of the stepwise variable transmission mechanism. The control unit performs a learning control that learns at least one of hydraulic pressure of the engagement and the disengagement of the friction engaging element, and inhibits the assist of the driving force to the engine by the motor in performing the learning control.