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1. 发明申请

US20150051032A1 CONTINUOUSLY VARIABLE TRANSMISSION AND HYDRAULIC PRESSURE CONTROL METHOD THEREFOR 有权
标题翻译：连续可变传动和液压控制方法
公开(公告)号：US20150051032A1
公开(公告)日：2015-02-19
申请号：US14388672
申请日：2013-02-21
申请人： ATCO LTD , NISSAN MOTOR CO., LTD.
发明人： Seiichiro Takahashi , Takashi Eguchi , Takahiro Kobayashi
IPC分类号： F16H61/662 , F16H61/04
CPC分类号： F16H61/66227 , F16H59/42 , F16H61/04 , F16H61/10 , F16H61/66259 , F16H61/66272 , F16H2059/425 , F16H2061/0477
摘要： A transmission controller detects a rotation, speed of an input shaft, calculates an inertia torque input to a continuously variable transmission based on a change ratio of the detected rotation speed, obtains a positive inertia torque by extracting a positive portion from the calculated inertia torque, and corrects pulley pressures based on the extracted positive inertia torque.
摘要翻译：变速器控制器根据所检测的转速的变化率来检测输入轴的旋转速度，计算输入到无级变速器的惯性转矩，通过从计算出的惯性转矩中提取正的部分来获得正惯性转矩，并根据所提取的正惯性转矩修正滑轮压力。

2. 发明授权

US09086144B2 Continuously variable transmission and hydraulic pressure control method therefor 有权
标题翻译：连续变速传动和液压控制方法
公开(公告)号：US09086144B2
公开(公告)日：2015-07-21
申请号：US14388672
申请日：2013-02-21
申请人： JATCO LTD. , NISSAN MOTOR CO., LTD.
发明人： Seiichiro Takahashi , Takashi Eguchi , Takahiro Kobayashi
IPC分类号： F16H61/04 , F16H61/662 , F16H59/42
CPC分类号： F16H61/66227 , F16H59/42 , F16H61/04 , F16H61/10 , F16H61/66259 , F16H61/66272 , F16H2059/425 , F16H2061/0477
摘要： A transmission controller detects a rotation speed of an input shaft, calculates an inertia torque input to a continuously variable transmission based on a change ratio of the detected rotation speed, obtains a positive inertia torque by extracting a positive portion from the calculated inertia torque, and corrects pulley pressures based on the extracted positive inertia torque.
摘要翻译：变速器控制器检测输入轴的转速，根据所检测的转速的变化率计算输入到无级变速器的惯性转矩，通过从所计算的惯性转矩中提取正的部分来获得正的惯性转矩;以及根据所提取的正惯性转矩修正滑轮压力。

3. 发明授权

US09133930B2 Continuously variable transmission and its hydraulic pressure control method 有权
标题翻译：连续变速传动及其液压控制方法
公开(公告)号：US09133930B2
公开(公告)日：2015-09-15
申请号：US14387414
申请日：2013-02-21
申请人： JATCO LTD , NISSAN MOTOR CO., LTD.
发明人： Seiichiro Takahashi , Takashi Eguchi , Tomohiro Utagawa , Yuta Ishinabe , Tetsuya Izumi , Takahiro Kobayashi
IPC分类号： F16H61/662 , F16H61/66
CPC分类号： F16H61/66236 , F16H61/66 , F16H61/662 , F16H61/6624 , F16H61/66259 , F16H61/66272 , F16H2061/66277 , F16H2061/6629
摘要： A transmission controller determines whether a shift returning to low, changing a speed ratio of a continuously variable transmission to the lowest when a vehicle decelerates, is being performed or not, calculates a primary pressure measured lower limit value at which a belt begins to slip actually, based on a deceleration of the vehicle and the speed ratio of the continuously variable transmission, and sets a lower limit value of a target value of the primary pressure during the shift returning to low as the primary pressure measured lower limit value.
摘要翻译：传动控制器确定是否执行了将车辆减速时将无级变速器的变速比改变为最低的换档返回到低档，计算皮带实际上开始滑动的初级压力测量下限值基于车辆的减速度和无级变速器的变速比，并且将换档期间的一次压力的目标值的下限值作为一次压力测量下限值设定为低。

4. 发明授权

US09488271B2 Control device for belt-type continuously variable transmission 有权
标题翻译：带式无级变速器控制装置
公开(公告)号：US09488271B2
公开(公告)日：2016-11-08
申请号：US14779521
申请日：2013-11-28
申请人： JATCO Ltd , NISSAN MOTOR CO., LTD.
发明人： Daisuke Aoki , Takahiro Kobayashi , Seiichiro Takahashi , Yuta Suzuki
IPC分类号： F16H61/662 , F16G1/22 , F16H9/18
CPC分类号： F16H61/66272 , F16G1/22 , F16H9/18 , F16H2061/66277
摘要： A control device for a belt-type continuously variable transmission CVT includes an engine 1, a belt-type continuously-variable transmitting mechanism 4; a forward/reverse switching mechanism 3 including a forward clutch 31 and a reverse brake 32; and a hydraulic control circuit 71 configured to control a pulley hydraulic pressure and engagement-element pressures for the forward clutch 31 and the reverse brake 32. The control device includes a selection control means for outputting a pulley hydraulic command to obtain an idle-time clamping pressure which is higher than an idle-time minimum pressure (idle-time MIN-pressure) calculated from an input torque, to the hydraulic control circuit 71, when the engine 1 is in operation during a selection of N-range. A position of an element clearance generated in the belt can be maintained even if drag torque is inputted.
摘要翻译：带式无级变速器CVT的控制装置包括发动机1，带式无级变速传动机构4; 包括前进离合器31和倒车制动器32的前进/后退切换机构3; 以及液压控制回路71，被配置为控制前进离合器31和后退制动器32的滑轮液压和接合元件压力。控制装置包括选择控制装置，用于输出滑轮液压指令以获得空转时间夹紧在选择N档期间，当发动机1运转时，高于从输入转矩计算出的空转时间最小压力（空转时MIN值）到液压控制回路71的压力。即使输入阻力矩，也能够保持带内产生的元件间隙的位置。

5. 发明申请

US20150081181A1 CONTINUOUSLY VARIABLE TRANSMISSION AND ITS HYDRAULIC PRESSURE CONTROL METHOD 有权
标题翻译：连续可变传动及其液压控制方法
公开(公告)号：US20150081181A1
公开(公告)日：2015-03-19
申请号：US14387414
申请日：2014-02-21
申请人： JATCO Ltd. , NISSAN MOTOR CO., LTD
发明人： Seiichiro Takahashi , Takashi Eguchi , Tomohiro Utagawa , Yuta Ishinabe , Tetsuya Izumi , Takahiro Kobayashi
IPC分类号： F16H61/662
CPC分类号： F16H61/66236 , F16H61/66 , F16H61/662 , F16H61/6624 , F16H61/66259 , F16H61/66272 , F16H2061/66277 , F16H2061/6629
摘要： A transmission controller determines whether a shift returning to low, changing a speed ratio of a continuously variable transmission to the lowest when a vehicle decelerates, is being performed or not, calculates a primary pressure measured lower limit value at which a belt begins to slip actually, based on a deceleration of the vehicle and the speed ratio of the continuously variable transmission, and sets a lower limit value of a target value of the primary pressure during the shift returning to low as the primary pressure measured lower limit value.
摘要翻译：传动控制器确定是否执行了将车辆减速时将无级变速器的变速比改变为最低的换档返回到低档，计算皮带实际上开始滑动的初级压力测量下限值基于车辆的减速度和无级变速器的变速比，并且将换档期间的一次压力的目标值的下限值作为一次压力测量下限值设定为低。

6. 发明授权

US09863533B2 Control device for continuously variable transmission 有权
公开(公告)号：US09863533B2
公开(公告)日：2018-01-09
申请号：US15021501
申请日：2014-10-17
申请人： JATCO Ltd , NISSAN MOTOR CO., LTD.
发明人： Seiichiro Takahashi , Daisuke Aoki , Takahiro Kobayashi , Juwan Kim , Shinichiro Watanabe , Yuta Suzuki
IPC分类号： F16H61/662 , F16H9/18 , F16H61/664 , F16H61/04 , F16H61/12
CPC分类号： F16H61/662 , F16H9/18 , F16H61/66272 , F16H61/6649 , F16H2061/0485 , F16H2061/0488 , F16H2061/1232 , F16H2061/66222
摘要： A control apparatus for a continuously variable transmission (1) that includes a belt-type continuously variable transmission mechanism (40) and friction engagement elements (32), (33) is disclosed. The control apparatus includes: an operation position detection section (65) configured to detect an operation position of a selection lever (50); a selection control section (60b) configured to execute a selection control for engaging the friction engagement elements (32), (33) from a time point at which a switching from a non-travel range to a travel range is detected; a determination section (60) configured to determine engagement states of the friction engagement elements (32, 33); and a pulley pressure control section (60c) configured to control a pulley pressure supplied to two pulleys (41), (42). A belt slippage during an engagement of clutches is suppressed while a load on an oil pump is reduced.

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