公开(公告)号：US06512971B2

公开(公告)日：2003-01-28

申请号：US09838579

申请日：2001-04-20

申请人： Kazuo Koumura ,  Masao Saitou ,  Masayuki Kuwata ,  Muneo Kusafuka

发明人： Kazuo Koumura ,  Masao Saitou ,  Masayuki Kuwata ,  Muneo Kusafuka

IPC分类号： G06G770

CPC分类号： F16H61/143 ,  F16H59/42 ,  F16H59/46 ,  F16H2059/366 ,  Y10T477/63525 ,  Y10T477/69383

摘要： In an automatic transmission having a torque converter interposed between an engine and a transmission mechanism, the torque converter includes a lock-up clutch capable of directly coupling an output shaft of the engine and an input shaft of the transmission mechanism. A speed difference detector is provided for detecting a difference between engine rotational speed and input shaft rotational speed. An engine speed controller means is also provided for controlling the engine speed to cause the speed difference to converge within a predetermined range. By detecting the speed difference, it is possible to precisely detect the actual vehicle state, and to reliably and smoothly engage the lock-up clutch without generating shift shock in any vehicle state. With this structure, the lock-up clutch can be reliably engaged and the engine brake can be secured.

公开(公告)号：US06669599B2

公开(公告)日：2003-12-30

申请号：US10000801

申请日：2001-12-04

申请人： Masakatsu Iwase ,  Masayuki Sugiura ,  Masamichi Unoki ,  Mitsunori Nakane ,  Kazuo Koumura ,  Muneo Kusafuka

发明人： Masakatsu Iwase ,  Masayuki Sugiura ,  Masamichi Unoki ,  Mitsunori Nakane ,  Kazuo Koumura ,  Muneo Kusafuka

IPC分类号： F16H5960

CPC分类号： F16H61/16 ,  F16H61/0213 ,  F16H2059/506 ,  F16H2061/163 ,  Y10T477/65 ,  Y10T477/677 ,  Y10T477/679

摘要： A shift control apparatus for an automatic transmission eliminates or reduces a sense of discomfort to the driver and other occupants during slip, while maintaining the necessary driving force. When slip is determined by detection of wheel speed, a slip signal is output. A controller which receives the slip signal outputs a maintaining signal for maintaining the gear stage which existed at the time the slip signal was received, until a predetermined period of time has passed. If the slip continues after the predetermined period of time, the controller outputs a shift signal to the automatic transmission to shift it to a predetermined gear stage, thus reducing driving force and preventing slip from continuing. If the slip stops within the predetermined period of time, the slip signal is canceled such that the current gear stage is maintained and no shift is executed.

摘要翻译： 用于自动变速器的变速控制装置在保持必要的驱动力的同时消除或减少了在打滑期间驾驶员和其他乘员的不适感。 当通过检测车轮速度确定滑差时，输出滑差信号。 接收到滑差信号的控制器输出用于维持在接收到滑差信号时存在的齿轮级的维持信号，直到经过预定时间段。 如果在预定时间段之后继续滑移，则控制器向自动变速器输出换挡信号以将其移动到预定的齿轮级，从而减少驱动力并防止滑动继续。 如果滑块在预定时间段内停止，则滑移信号被取消，使得当前的齿轮级保持并且不执行换档。