公开(公告)号：US11015704B2

公开(公告)日：2021-05-25

申请号：US16642047

申请日：2018-08-07

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

发明人： Sho Okutani ,  Takashi Koguchi ,  Makoto Komatsu ,  Takashi Nobukawa

IPC分类号： F16H59/18 ,  F16H59/14 ,  F16H61/662

摘要： A vehicle has an engine (1) as a driving source. Output rotation of the engine (1) is transmitted to driving wheels (7) through a torque converter (2) equipped with a lock-up clutch, a first gear train (3), a transmission (4) formed by combination of a variator (20) and an auxiliary transmission (30), a second gear train (5) and a final speed reduction device (6). The second gear train (5) is provided with a parking mechanism (8) that mechanically locks an output shaft of the transmission (4) so that the output shaft of the transmission (4) cannot rotate during parking of the vehicle. A shift speed when down-shift is performed by the variator (20) during a torque-down request to the engine (1) is set to be slower than a shift speed when down-shift is performed by the variator (20) during a non-torque-down request.

公开(公告)号：US10385968B2

公开(公告)日：2019-08-20

申请号：US14917712

申请日：2014-09-24

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

发明人： Seiichiro Takahashi ,  Takuichiro Inoue ,  Koutarou Tagami ,  Fumito Shinohara ,  Hiroyuki Suzuki ,  Yuji Okamoto ,  Takashi Nobukawa

IPC分类号： F16H61/70 ,  F16H61/04 ,  F16H61/662 ,  F16H63/50 ,  F16H37/02 ,  B60W10/111 ,  B60W10/107 ,  B60W10/06

摘要： Disclosed is a control device for a continuously variable transmission (4) that has, as forward speed change stages, a first speed change stage (32) and a second speed change stage (33). The control device comprises a coordinated speed change means (12a) that carries out a coordinated speed changing in such a manner that when the speed change stage of an auxiliary transmission mechanism (30) is about to be changed, a speed change speed of the auxiliary transmission mechanism (30) is coordinated with a variator (20) and the variator (20) is controlled to carry out a speed change in a direction opposite to that of the auxiliary transmission mechanism (30) while carrying out the speed change operation of the auxiliary transmission mechanism (30), and a torque control means (12b) that carries out a torque regulating control during the coordinated speed changing under up-shifting by the coordinated speed change means, the torque regulating control being a control for effecting a torque-up operation to a driving source (1) after effecting a torque-down operation to the driving source and including a timing through which a starting time point of a drive force gap caused by the coordinated speed changing is advanced and a timing through which an ending time point of the drive force gap is delayed.