公开(公告)号：US20190017594A1

公开(公告)日：2019-01-17

申请号：US16067636

申请日：2016-10-26

申请人： Nissan Motor Co., Ltd.

发明人： Yuzuru TOHTA

IPC分类号： F16H61/14 ,  F16H61/02 ,  B60W10/06 ,  B60W10/11 ,  B60W20/30 ,  B60K6/547

CPC分类号： F16H61/143 ,  B60K6/547 ,  B60W10/06 ,  B60W10/11 ,  B60W20/30 ,  F16H59/40 ,  F16H61/02 ,  F16H61/0213 ,  F16H61/14 ,  F16H61/16 ,  F16H61/66 ,  F16H61/66259 ,  F16H63/502 ,  F16H2059/144 ,  F16H2061/0227

摘要： A vehicle includes an engine as a drive source and a continuously variable transmission. The continuously variable transmission includes a torque converter having a lockup clutch. When simultaneous execution of an upshift of the continuously variable transmission and a lockup engagement of the lockup clutch is required in accordance with an accelerator depression operation, the LU engagement control of the lockup clutch is started in accordance with an LU engagement request. On the other hand, the upshift control uses the continuously variable transmission to place the starting of the control with respect to the upshift request on standby and cancels the standby when the LU engagement control of the lockup clutch enters a lockup engagement completion region and starts the upshift control (delayed control).

公开(公告)号：US20180245686A1

公开(公告)日：2018-08-30

申请号：US15558962

申请日：2016-02-17

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

发明人： Masahiro HAMANO ,  Youji ITOU ,  Kosuke ABE ,  Haruka OZONO

IPC分类号： F16H61/12 ,  F16H61/00 ,  F16H9/18 ,  F16H61/662

CPC分类号： F16H61/12 ,  F16H9/18 ,  F16H61/0021 ,  F16H61/662 ,  F16H61/66259 ,  F16H2061/1288

摘要： In a transmission control device for controlling a transmission, a controller determines failure of a SOL corresponding to a hydraulic secondary-pressure actuator. The controller variably controls line command pressure, and in a case where the failure is determined, fixes the line command pressure to a line pressure set value. The controller variably controls primary command pressure, and in a case where the failure is determined, continuously changes a speed ratio of a variator by variably controlling the primary command pressure. The controller variably controls secondary command pressure, and in a case where the failure is determined, fixes the secondary command pressure to a secondary pressure set value.

公开(公告)号：US10041588B2

公开(公告)日：2018-08-07

申请号：US15286950

申请日：2016-10-06

申请人： HONDA MOTOR CO., LTD.

发明人： Toru Yuki ,  Yoshihisa Hirose ,  Hiroo Kanke

IPC分类号： F16H61/662 ,  F16H9/18 ,  E01H5/09 ,  B60W30/188 ,  B60W10/107 ,  B60W10/06 ,  F16H9/12

CPC分类号： F16H61/66236 ,  B60W10/06 ,  B60W10/107 ,  B60W30/1884 ,  B60W2520/10 ,  B60W2710/0644 ,  B60W2710/1005 ,  E01H5/098 ,  F16H9/12 ,  F16H9/18 ,  F16H61/662 ,  F16H61/66259 ,  F16H2061/66213

摘要： A working machine having a belt-type continuously variable transmission in a working power transmission system includes a target working speed setting section for optionally setting a target working rotational speed of a working unit, a working unit speed sensor that detects an actual working rotational speed of the working unit, a speed reduction ratio regulation mechanism that regulates a minimum speed reduction ratio of a rotational speed of a driven pulley with respect to a drive pulley, and a control unit. The control unit controls a drive source rotational speed to bring the actual working rotational speed close to the target working rotational speed, obtains a minimum limit speed reduction ratio based upon a target minimum rotational speed of a drive source and the target working rotational speed, and controls the speed reduction ratio regulation mechanism to keep the minimum limit speed reduction ratio.

公开(公告)号：US20180163863A1

公开(公告)日：2018-06-14

申请号：US15831313

申请日：2017-12-04

申请人： Honda Motor Co., Ltd.

发明人： Seiichi Ogawa ,  Masao Takiguchi ,  Yohei Okagawa

IPC分类号： F16H61/662

CPC分类号： F16H61/66259 ,  B60K11/02 ,  B60K11/04 ,  B60K11/08 ,  B60K11/085 ,  B60W10/00 ,  B60W10/04 ,  B60W10/06 ,  B60W10/101 ,  B60W10/107 ,  B60W10/30 ,  B60Y2306/13 ,  B60Y2400/72 ,  F02D41/22 ,  F16H2063/504 ,  Y02T10/88

摘要： An engine room temperature rise restricting apparatus including an open and close detector of the grille shutter, and a controller including a CPU and a memory coupled to the CPU, wherein the CPU and the memory are configured to perform: detecting a stuck-closed failure of a grille shutter of a condition that the grille shutter remains closed regardless of an open instruction for the grille shutter, based on signal from the open and close detector; and controlling a speed ratio of a continuously variable transmission so that an upper limit of an engine rotational speed or an engine driving force when the stuck-closed failure is detected is smaller than an upper limit of the engine rotational speed or the engine driving force when the stuck-closed failure is not detected.

公开(公告)号：US20180149263A1

公开(公告)日：2018-05-31

申请号：US15821188

申请日：2017-11-22

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Yu NAGASATO ,  Hironori ASAOKA ,  Yoshio ITO

IPC分类号： F16H61/00 ,  F16H61/14 ,  F16H61/662 ,  F16H59/14 ,  F16H59/42 ,  F16H59/68 ,  F16H59/74

CPC分类号： F16H61/0025 ,  F16H57/0436 ,  F16H59/14 ,  F16H59/42 ,  F16H59/68 ,  F16H59/70 ,  F16H59/74 ,  F16H61/0031 ,  F16H61/0206 ,  F16H61/143 ,  F16H61/66227 ,  F16H61/66259 ,  F16H2059/147 ,  F16H2059/743 ,  F16H2061/0037

摘要： The hydraulic control device includes: a mechanical variable-capacity oil pump; and an electronic control unit configured to calculate a target discharge volume of the mechanical variable-capacity oil pump using a plurality of parameters of the transmission, and control the mechanical variable-capacity oil pump based on the target discharge volume.

公开(公告)号：US09982775B2

公开(公告)日：2018-05-29

申请号：US15509114

申请日：2015-09-07

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Takafumi Inagaki ,  Yoshinobu Soga ,  Shuji Moriyama ,  Yoshihiro Mizuno ,  Hiromitsu Nitani

IPC分类号： F16H61/12 ,  F16H61/02 ,  F16H61/662

CPC分类号： F16H61/0206 ,  B60Y2410/115 ,  F16H61/12 ,  F16H61/66259 ,  F16H2061/1252 ,  F16H2061/1268

摘要： Ground wires are shared between a drive-side pulley solenoid valve and a driven-side pulley solenoid valve. Therefore, when a disconnection or short circuit occurs in the shared portion, a drive-side pulley and a driven-side pulley show substantially the same behavior. As a result, changes in the speed ratio γcvt of a continuously variable transmission are suppressed and changes in vehicle behavior are also suppressed. Therefore, it is possible to suppress the degradation of drivability during the failure of the solenoid valves involved in power transmission.

公开(公告)号：US09816610B2

公开(公告)日：2017-11-14

申请号：US14648728

申请日：2013-11-29

申请人： Gear Chain Industrial B.V.

发明人： Jacobus Hubertus Maria Van Rooij ,  Wilhelmus Petrus Maria Schaerlaeckens

IPC分类号： F16H55/56 ,  F16H59/00 ,  F16H61/00 ,  F16H63/00 ,  F16H61/662 ,  F16H61/02

CPC分类号： F16H61/66272 ,  F16H61/0025 ,  F16H61/0206 ,  F16H61/66259

摘要： Control system for a continuously variable transmission with a first and a second pair of conical sheaves each with adjustable running radius, in which of each pair at least one sheave (14a, 14b) is coupled to a first and a second hydraulic actuator (20a, 20b) respectively which sets the axial sheave position in dependence of the amount of hydraulic medium supplied thereto, in which the actuators are connected with means to supply and discharge thereto/therefrom respectively, hydraulic medium, and one actuator is connected to a source of hydraulic pressure medium, and in which furthermore the first and second actuator respectively is connected with a first and second control chamber (60, 124) respectively, filled with hydraulic medium and having a variable control volume, in such a way that an increase of the first control volume is coupled to a decrease of the second control volume, and vice versa.

公开(公告)号：US09810320B2

公开(公告)日：2017-11-07

申请号：US15134889

申请日：2016-04-21

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Tsubasa Kato ,  Seiji Kuwahara ,  Satoshi Yamanaka

IPC分类号： F16H61/66 ,  F16H59/20 ,  B60W10/04 ,  B60W10/101 ,  B60W30/18 ,  F16H61/662

CPC分类号： F16H61/66 ,  B60W10/04 ,  B60W10/101 ,  B60W30/18009 ,  F16H59/20 ,  F16H61/66259 ,  F16H2061/6611 ,  F16H2061/6615

摘要： A vehicle control system is provided to improve a response and an acceleration feel of a vehicle having a continuously variable transmission. The vehicle control system is configured to control an output power of a prime mover and a speed ratio of a transmission in such a manner that an actual driving force is increased stepwise to the required driving force to be achieved by a kick-downshifting so as to temporarily hold an increase in an acceleration during execution of the kick-downshifting.

公开(公告)号：US09689495B2

公开(公告)日：2017-06-27

申请号：US14935575

申请日：2015-11-09

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Zhen J. Zhang ,  Paul G. Otanez ,  Shushan Bai

IPC分类号： F16H9/18 ,  F16H61/662 ,  B60W10/107

CPC分类号： F16H61/66272 ,  B60W10/107 ,  F16H9/18 ,  F16H61/66259 ,  F16H2061/66204 ,  Y10T477/6237 ,  Y10T477/624 ,  Y10T477/6242

摘要： A powertrain system including an internal combustion engine rotatably coupled to a variator of a continuously variable transmission (CVT) is described. A method for controlling the CVT includes determining a first speed ratio change rate based upon a desired speed ratio and a commanded speed ratio, and determining a commanded speed ratio trajectory based upon the first speed ratio change rate, an actual speed ratio and a commanded speed ratio. A ratio change coefficient and a force ratio factor are determined based upon the commanded speed ratio trajectory. A shift force is determined based upon the ratio change coefficient and a total speed ratio change rate. A primary pulley pressure and a secondary pulley pressure for the CVT are controlled based upon the shift force and the force ratio factor.

公开(公告)号：US09671017B2

公开(公告)日：2017-06-06

申请号：US14549974

申请日：2014-11-21

申请人： Fuji Jukogyo Kabushiki Kaisha

发明人： Keisuke Ajimoto

IPC分类号： F16H61/662 ,  F16H61/664 ,  F16H59/20 ,  F16H59/24

CPC分类号： F16H61/6648 ,  F16H59/20 ,  F16H59/24 ,  F16H61/66259 ,  Y10T477/619

摘要： A transmission control device includes a converter that converts continuous accelerator positions detected by an accelerator pedal sensor into a stepped step position, and a controller that controls the gear ratio of a continuously variable transmission based on the converted step position. The converter creates a hysteresis regarding the converted step position, when the accelerator depression amount increases, and when the accelerator depression amount decreases. In the case where the step position reaches a predetermined position or greater, the controller executes kick-down control where the gear ratio is controlled to a low side.