公开(公告)号：EP0566399A3

公开(公告)日：1994-01-05

申请号：EP93302916.7

申请日：1993-04-15

申请人： MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA

发明人： Fujita, Kenjiro ,  Usuki, Katsutoshi, Mitsubishi Dai-4 ,  Hatta, Katsuhiro

IPC分类号： F16H61/06

CPC分类号： F16H61/061 ,  F16H2059/385 ,  F16H2059/425 ,  F16H2061/0078 ,  F16H2061/0255 ,  Y10T477/692 ,  Y10T477/6937 ,  Y10T477/69383 ,  Y10T477/69387

摘要： During downshift operation of an automotive automatic transmission in which a lower-speed clutch for establishing a lower-speed gear is engaged while a higher-speed clutch, which has established a higher-speed gear, is disengaged, to increase the turbine rotational speed Nt toward a synchronous rotation speed Ntj associated with the lower-speed gear, speed change control is carried out according to the same control method regardless of whether the engine is in a power-on or power-off state. A target change rate (Nir)' of turbine rotational speed associated with the higher-speed clutch and a target change rate (Nia)' of turbine rotational speed associated with the lower-speed clutch are set, and a change rate (Nt)' of the turbine rotational speed is detected. The transmission torque through the higher-speed clutch is controlled in a feedback manner such that the detected change rate (Nt)' coincides with the change rate (Nir)', and also the transmission torque through the lower-speed clutch is feedback-controlled such that the change rate (Nt)' coincides with the change rate (Nia)', thereby carrying out downshift.

摘要翻译： 在建立低速档的低速离合器接合而建立了高速档的高速离合器分离的汽车自动变速器的降档操作期间，为了增大涡轮转速Nt 朝向与低速档相关联的同步转速Ntj，不管发动机处于通电还是断电状态，都根据相同的控制方法执行变速控制。 设定与高速离合器相关联的涡轮机转速的目标变化率（Nir）'和与低速离合器相关联的涡轮机转速的目标变化率（Nia）'，并且设定变速率（Nt）'' 检测涡轮转速。 以反馈方式控制通过较高速度的离合器的传递转矩，使得检测到的变化率（Nt）'与变化率（Nir）'一致，并且还通过较低速度的离合器的传递转矩被反馈控制 使得变化率（Nt）'与变化率（Nia）'一致，从而进行降档。

公开(公告)号：EP0566399A2

公开(公告)日：1993-10-20

申请号：EP93302916.7

申请日：1993-04-15

申请人： MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA

发明人： Fujita, Kenjiro ,  Usuki, Katsutoshi, Mitsubishi Dai-4 ,  Hatta, Katsuhiro

IPC分类号： F16H61/06

CPC分类号： F16H61/061 ,  F16H2059/385 ,  F16H2059/425 ,  F16H2061/0078 ,  F16H2061/0255 ,  Y10T477/692 ,  Y10T477/6937 ,  Y10T477/69383 ,  Y10T477/69387

摘要： During downshift operation of an automotive automatic transmission in which a lower-speed clutch for establishing a lower-speed gear is engaged while a higher-speed clutch, which has established a higher-speed gear, is disengaged, to increase the turbine rotational speed Nt toward a synchronous rotation speed Ntj associated with the lower-speed gear, speed change control is carried out according to the same control method regardless of whether the engine is in a power-on or power-off state. A target change rate (Nir)' of turbine rotational speed associated with the higher-speed clutch and a target change rate (Nia)' of turbine rotational speed associated with the lower-speed clutch are set, and a change rate (Nt)' of the turbine rotational speed is detected. The transmission torque through the higher-speed clutch is controlled in a feedback manner such that the detected change rate (Nt)' coincides with the change rate (Nir)', and also the transmission torque through the lower-speed clutch is feedback-controlled such that the change rate (Nt)' coincides with the change rate (Nia)', thereby carrying out downshift.

摘要翻译： 在用于建立低速齿轮的低速离合器接合的汽车自动变速器的降档操作中，建立了更高速档的高速离合器被分离，以提高涡轮转速Nt 朝向与低速档相关联的同步转速Ntj，根据相同的控制方法执行速度变化控制，而不管发动机是否处于通电或断电状态。 设定与高速离合器相关联的涡轮转速的目标变化率（Nir）和与低速离合器相关联的涡轮转速的目标变化率（Nia），变化率（Nt） 的涡轮转速。 通过高速离合器的传递扭矩以反馈方式进行控制，使得检测到的变化率（Nt）与变化率（Nir）一致，并且通过低速离合器的传递转矩也被反馈控制 使得变化率（Nt）“与变化率（Nia）”一致，从而进行降档。

公开(公告)号：EP0566399B1

公开(公告)日：1996-10-09

申请号：EP93302916.7

申请日：1993-04-15

申请人： MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA

发明人： Fujita, Kenjiro ,  Usuki, Katsutoshi, Mitsubishi Dai-4 ,  Hatta, Katsuhiro

IPC分类号： F16H61/06

CPC分类号： F16H61/061 ,  F16H2059/385 ,  F16H2059/425 ,  F16H2061/0078 ,  F16H2061/0255 ,  Y10T477/692 ,  Y10T477/6937 ,  Y10T477/69383 ,  Y10T477/69387

摘要： During downshift operation of an automotive automatic transmission in which a lower-speed clutch for establishing a lower-speed gear is engaged while a higher-speed clutch, which has established a higher-speed gear, is disengaged, to increase the turbine rotational speed Nt toward a synchronous rotation speed Ntj associated with the lower-speed gear, speed change control is carried out according to the same control method regardless of whether the engine is in a power-on or power-off state. A target change rate (Nir)' of turbine rotational speed associated with the higher-speed clutch and a target change rate (Nia)' of turbine rotational speed associated with the lower-speed clutch are set, and a change rate (Nt)' of the turbine rotational speed is detected. The transmission torque through the higher-speed clutch is controlled in a feedback manner such that the detected change rate (Nt)' coincides with the change rate (Nir)', and also the transmission torque through the lower-speed clutch is feedback-controlled such that the change rate (Nt)' coincides with the change rate (Nia)', thereby carrying out downshift.

公开(公告)号：EP0565383A1

公开(公告)日：1993-10-13

申请号：EP93302804.5

申请日：1993-04-08

申请人： MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA

发明人： Fujita, Kenjiro ,  Usuki, Katsutoshi Mitsubishi Dai-4 Seimei-ryo, 18 ,  Hatta, Katsuhiro ,  Hiramatsu, Takeo

IPC分类号： F16H61/06

CPC分类号： F16H61/061 ,  F16H59/46 ,  F16H61/684 ,  F16H2059/425 ,  F16H2061/0078 ,  Y10T74/1926

摘要： A speed change control method of an automotive automatic transmission in which a turbine rotational speed is caused to change toward a synchronous rotational speed associated with a desired gear stage by engaging a connection-side clutch while disengaging a release-side clutch, to thereby carry out gear-changing. To reduce a speed change shock, a speed change time is rendered stabilized irrespective of vehicle running state, by carrying out feedback control (Step S76) such that the time-dependent change rate (Ns)' of a rotational speed difference between clutch plates and clutch discs of the connection-side clutch becomes equal to a target slip rotational speed change rate (Ni)'.

摘要翻译： 一种汽车自动变速器的变速控制方法，其中，通过在使释放侧离合器脱离的同时使连接侧离合器接合而使涡轮机转速朝向与期望的齿轮级相关的同步转速变化，从而进行 齿轮变换。 为了减少变速冲击，通过进行反馈控制（步骤S76），使离合器片和离合器片之间的转速差的时间变化率（Ns）'与车辆行驶状态无关地使速度变化时间稳定 连接侧离合器的离合器盘等于目标滑移转速变化率（Ni）'。