公开(公告)号：US10207715B2

公开(公告)日：2019-02-19

申请号：US15547855

申请日：2015-12-16

申请人： JATCO Ltd ,  NISSAN MOTOR CO., LTD.

发明人： Takashi Koguchi ,  Sho Okutani ,  Makoto Komatsu ,  Toshiaki Noda ,  Takuichiro Inoue ,  Yuuji Nagase ,  Hiroyasu Tanaka ,  Hideshi Wakayama

IPC分类号： F16H61/16 ,  B60W30/19 ,  F16H59/18 ,  F16H59/44 ,  B60W10/02 ,  B60W10/10 ,  F16H61/02 ,  F16H61/04 ,  F16H59/42 ,  F16H61/14 ,  F16H61/684 ,  F16H59/14 ,  F16H59/36 ,  F16H59/20

摘要： An automatic transmission control device implements a downshift by disengagement of a clutch that is engaged in a gear position before the downshift. It is determined whether an engine state is in a predetermined region in which a change of an engine torque per a change of an accelerator pedal opening is smaller than that in another region, and the engine torque is within a predetermined range, and an engine rotational speed is within a predetermined range. It is determined whether an operating state is in a predetermined state of accelerator operation in which the accelerator pedal opening is larger than a predetermined value, and an accelerator pedal opening change rate has an absolute value smaller than a predetermined value. The downshift is inhibited in response to determination that the engine state is in the predetermined region and the operating state is in the predetermined state of accelerator operation.

公开(公告)号：US20140343810A1

公开(公告)日：2014-11-20

申请号：US14364591

申请日：2012-11-12

申请人： JATCO LTD.

发明人： Hideaki Suzuki ,  Yoshio Yasui ,  Yuuji Nagase ,  Fumito Shinohara

IPC分类号： F16H61/66 ,  F16H61/02

CPC分类号： F16H61/66 ,  F16H61/0265 ,  F16H61/66259 ,  F16H61/66272 ,  F16H2061/0075

摘要： A first determining unit configured to determine whether the indicated pressure of a primary pulley pressure has become a line pressure during an up shift, an indicated pressure control unit configured to make the indicated pressure of the primary pulley pressure alone higher than the line pressure when the target shift rate is determined to be equal to or lower than a predetermined shift rate and the speed ratio is determined not to have become the target speed ratio, and an estimated time detecting unit configured to detect a predetermined time it takes until the primary pulley pressure can be regarded as being equal to the line pressure after the target shift rate is determined to be equal to or lower than the predetermined shift rate, and the indicated pressure of the primary pulley pressure is made higher than the line pressure, are provided, and the indicated pressure control unit is configured to calculate the deviation between the indicated pressure of the primary pulley pressure and indicated pressure of the line pressure after the estimated predetermined time is over, and control transmission of a continuously-variable transmission while maintaining the deviation after the predetermined time is over.

摘要翻译： 第一确定单元，被配置为确定初级带轮压力的指示压力是否已经成为上升档期间的线路压力，所指示的压力控制单元被配置成使得主带轮压力的指示压力单独高于线路压力时， 目标偏移速率被确定为等于或低于预定换档速率，并且确定速比不成为目标速度比，并且估计时间检测单元被配置为检测直到初级皮带轮压力 可以将目标偏移速率确定为等于或低于预定换档速率，并且使初级带轮压力的指示压力高于线路压力，将其视为等于线压力，并且 指示压力控制单元被配置为计算主滑轮压力的指示压力之间的偏差 在预定的预定时间结束之后重新指示管路压力的压力，并且在预定时间结束之后控制无级变速器的传动，同时保持偏差。

公开(公告)号：US09062742B2

公开(公告)日：2015-06-23

申请号：US14364566

申请日：2012-11-12

申请人： JATCO LTD

发明人： Hideaki Suzuki ,  Yoshio Yasui ,  Yuuji Nagase ,  Fumito Shinohara

IPC分类号： G06F17/00 ,  F16H9/18 ,  F16H61/02 ,  F16H61/662

CPC分类号： F16H9/18 ,  F16H61/02 ,  F16H61/662 ,  F16H61/66259

摘要： A continuously-variable transmission, which has a first pulley, which has a first fixed pulley and a first mobile pulley, a second pulley, which has a second fixed pulley and a second mobile pulley, and a drive force transmitting member, which is stretched between the first pulley and the second pulley, is provided, and this continuously-variable transmission has an indicated pressure calculation section, which calculates the indicated pressure of the first pulley, a stroke speed calculation section, which calculates the stroke speed of the first mobile pulley, and an oil pressure calculation section, which, when oil is discharged from an oil chamber, calculates the amount of increase of oil pressure in a first pulley oil chamber that increases compared to the indicated pressure due to the channel resistance of the discharge path, based on the channel resistance and the stroke speed, and a correction section, which, when oil is discharged from the first pulley oil chamber, subtracts the amount of increase of oil pressure from the first pulley pressure based on a target speed ratio and input torque, and corrects the indicated pressure of the first pulley.

摘要翻译： 一种无级变速器，其具有第一滑轮，该第一滑轮具有第一固定滑轮和第一可动滑轮，具有第二固定滑轮和第二可移动滑轮的第二滑轮以及被拉伸的驱动力传递构件 设置在第一滑轮和第二滑轮之间，并且该无级变速器具有计算第一滑轮的指示压力的指示压力计算部，计算第一滑动件的行程速度的行程速度计算部 滑轮和油压计算部，当油从油室排出时，计算由于排出路径的通道电阻而与指定压力相比增加的第一滑轮油室中的油压的增加量 基于通道阻力和冲程速度，以及校正部，当从第一滑轮油室排出油时，减除第 基于目标速比和输入转矩从第一滑轮压力增加油压的量，并校正第一滑轮的指示压力。

公开(公告)号：US09080671B2

公开(公告)日：2015-07-14

申请号：US14364591

申请日：2012-11-12

申请人： JATCO LTD

发明人： Hideaki Suzuki ,  Yoshio Yasui ,  Yuuji Nagase ,  Fumito Shinohara

IPC分类号： F16H61/66 ,  F16H61/02 ,  F16H61/662 ,  F16H61/00

CPC分类号： F16H61/66 ,  F16H61/0265 ,  F16H61/66259 ,  F16H61/66272 ,  F16H2061/0075

摘要： A first determining unit configured to determine whether the indicated pressure of a primary pulley pressure has become a line pressure during an up shift, an indicated pressure control unit configured to make the indicated pressure of the primary pulley pressure alone higher than the line pressure when the target shift rate is determined to be equal to or lower than a predetermined shift rate and the speed ratio is determined not to have become the target speed ratio, and an estimated time detecting unit configured to detect a predetermined time it takes until the primary pulley pressure can be regarded as being equal to the line pressure after the target shift rate is determined to be equal to or lower than the predetermined shift rate, and the indicated pressure of the primary pulley pressure is made higher than the line pressure, are provided, and the indicated pressure control unit is configured to calculate the deviation between the indicated pressure of the primary pulley pressure and indicated pressure of the line pressure after the estimated predetermined time is over, and control transmission of a continuously-variable transmission while maintaining the deviation after the predetermined time is over.

摘要翻译： 第一确定单元，被配置为确定初级带轮压力的指示压力是否已经成为上升档期间的线路压力，所指示的压力控制单元被配置成使得主带轮压力的指示压力单独高于线路压力时， 目标偏移速率被确定为等于或低于预定换档速率，并且确定速比不成为目标速度比，并且估计时间检测单元被配置为检测直到初级皮带轮压力 可以将目标偏移速率确定为等于或低于预定换档速率，并且使主轮带轮压力的指示压力高于线路压力等于线路压力，并且 指示压力控制单元被配置为计算主滑轮压力的指示压力之间的偏差 在预定的预定时间结束之后重新指示管路压力的压力，并且在预定时间结束之后控制无级变速器的传动，同时保持偏差。

公开(公告)号：US20140342860A1

公开(公告)日：2014-11-20

申请号：US14364566

申请日：2012-11-12

申请人： JATCO LTD

发明人： Hideaki Suzuki ,  Yoshio Yasui ,  Yuuji Nagase ,  Fumito Shinohara

IPC分类号： F16H9/18

CPC分类号： F16H9/18 ,  F16H61/02 ,  F16H61/662 ,  F16H61/66259

摘要： A continuously-variable transmission, which has a first pulley, which has a first fixed pulley and a first mobile pulley, a second pulley, which has a second fixed pulley and a second mobile pulley, and a drive force transmitting member, which is stretched between the first pulley and the second pulley, is provided, and this continuously-variable transmission has an indicated pressure calculation section, which calculates the indicated pressure of the first pulley, a stroke speed calculation section, which calculates the stroke speed of the first mobile pulley, and an oil pressure calculation section, which, when oil is discharged from an oil chamber, calculates the amount of increase of oil pressure in a first pulley oil chamber that increases compared to the indicated pressure due to the channel resistance of the discharge path, based on the channel resistance and the stroke speed, and a correction section, which, when oil is discharged from the first pulley oil chamber, subtracts the amount of increase of oil pressure from the first pulley pressure based on a target speed ratio and input torque, and corrects the indicated pressure of the first pulley.

摘要翻译： 一种无级变速器，其具有第一滑轮，该第一滑轮具有第一固定滑轮和第一可动滑轮，具有第二固定滑轮和第二可移动滑轮的第二滑轮以及被拉伸的驱动力传递构件 设置在第一滑轮和第二滑轮之间，并且该无级变速器具有计算第一滑轮的指示压力的指示压力计算部，计算第一滑动件的行程速度的行程速度计算部 滑轮和油压计算部，当油从油室排出时，计算由于排出路径的通道电阻而与指定压力相比增加的第一滑轮油室中的油压的增加量 基于通道阻力和冲程速度，以及校正部，当从第一滑轮油室排出油时，减除第 基于目标速比和输入转矩从第一滑轮压力增加油压的量，并校正第一滑轮的指示压力。