公开(公告)号：US5505100A

公开(公告)日：1996-04-09

申请号：US315056

申请日：1994-09-29

Applicant: Randall M. Mitchell ,  Alan L. Stahl ,  James R. Talbott

Inventor： Randall M. Mitchell ,  Alan L. Stahl ,  James R. Talbott

IPC: F16H61/02 ,  F16H61/08 ,  F16H61/684 ,  F16H61/70

CPC classification number: F16H61/08 ,  F16H2306/24 ,  F16H61/684 ,  F16H61/70 ,  Y10T74/19251

Abstract: In one aspect of the present invention, a method for controlling an interrupted shift for a powershift transmission is disclosed. The method first determines which clutches are active and then classifies each of the active clutches. Thereafter, the method calculates the timing associated with the engagement and disengagement of the classified active clutches to result in a smooth transition to the final selected gear.

Abstract translation: 在本发明的一个方面，公开了一种用于控制功率变换传动的中断换档的方法。 该方法首先确定哪些离合器是活动的，然后分类每个主动离合器。 此后，该方法计算与分类的主动离合器的接合和分离相关联的定时，从而平滑过渡到最终选定的档位。

公开(公告)号：US5580332A

公开(公告)日：1996-12-03

申请号：US421724

申请日：1995-04-13

Applicant: Randall M. Mitchell ,  Todd D. Creger ,  James R. Talbott ,  Gregory L. Williamson ,  Richard B. League

Inventor： Randall M. Mitchell ,  Todd D. Creger ,  James R. Talbott ,  Gregory L. Williamson ,  Richard B. League

IPC: F16H61/08 ,  F16H59/38 ,  F16H59/42 ,  F16H59/46 ,  F16H59/68 ,  F16H61/06 ,  F16H61/04

CPC classification number: F16H61/061 ,  F16H2059/467 ,  F16H2059/6807 ,  F16H2061/062 ,  F16H59/38 ,  F16H59/42 ,  F16H59/46 ,  Y10T477/6937 ,  Y10T477/69383 ,  Y10T477/6939 ,  Y10T477/735

Abstract: The present invention is directed toward determining when a clutch of an automatic transmission substantially fills with fluid. Once it is accurately determined when a clutch fills with fluid, then control over the transmission shifting may reliably be performed. The present invention determines when an on-coming speed clutch substantially fills with fluid in response to determining when an off-going speed clutch releases. Further, the present invention determines when an on-coming direction clutch substantially fills with fluid in response to determining when the torque converter output torque suddenly changes.

Abstract translation: 本发明旨在确定自动变速器的离合器何时基本上充满流体。 一旦离合器充满流体就准确地确定，则可以可靠地执行对变速器换档的控制。 本发明响应于确定何时离合器离合器释放而确定进口速度离合器何时基本上充满流体。 此外，本发明响应于确定变矩器输出转矩何时突然改变而确定进入方向离合器何时基本上充满流体。

公开(公告)号：US5551930A

公开(公告)日：1996-09-03

申请号：US421722

申请日：1995-04-13

Applicant: Todd D. Creger ,  Richard B. League ,  Randall M. Mitchell ,  David M. Spurlock ,  James R. Talbott ,  Gregory L. Williamson

Inventor： Todd D. Creger ,  Richard B. League ,  Randall M. Mitchell ,  David M. Spurlock ,  James R. Talbott ,  Gregory L. Williamson

IPC: F16H61/06 ,  F16H3/66 ,  F16H59/36 ,  F16H59/38 ,  F16H59/40 ,  F16H59/72 ,  F16H61/00 ,  F16H61/02 ,  F16H61/08 ,  F16H61/686 ,  F16H61/26

CPC classification number: F16H61/08 ,  F16H2059/385 ,  F16H2061/0087 ,  F16H2061/0209 ,  F16H2061/0255 ,  F16H2061/062 ,  F16H3/66 ,  F16H59/36 ,  F16H59/38 ,  F16H59/40 ,  F16H59/72 ,  F16H61/0246 ,  F16H61/061 ,  F16H61/686 ,  Y10T477/69363 ,  Y10T477/6937 ,  Y10T477/69387

Abstract: The present invention relates to an adaptive control method for an automatic transmission. The method includes the steps of:(a) commanding a predetermined clutch to fill in accordance with a plurality of clutch fill parameters;(b) determining the actual time to completely fill the clutch;(c) comparing the actual fill time with a predetermined fill time; and(d) adjusting at least one of the plurality of clutch fill parameters in response to the comparison in order to modify the clutch fill period during subsequent shifts to the predetermined clutch. Accordingly, the present invention adapts future shifts based on past shifts to improve the shift quality of the transmission.

Abstract translation: 本发明涉及一种自动变速器的自适应控制方法。 该方法包括以下步骤：（a）根据多个离合器填充参数命令预定的离合器进行填充; （b）确定完全填充离合器的实际时间; （c）将实际填充时间与预定填充时间进行比较; 以及（d）响应于所述比较来调整所述多个离合器填充参数中的至少一个，以便在随后向所述预定离合器的换档期间修改所述离合器填充周期。 因此，本发明基于过去的班次来适应未来的班次，以提高传输的班次质量。

公开(公告)号：US5467854A

公开(公告)日：1995-11-21

申请号：US257391

申请日：1994-06-07

Applicant: Todd D. Creger ,  Randall M. Mitchell ,  Alan L. Stahl ,  James R. Talbott

Inventor： Todd D. Creger ,  Randall M. Mitchell ,  Alan L. Stahl ,  James R. Talbott

IPC: F16H61/08 ,  F16H59/36 ,  F16H59/46 ,  F16H59/72 ,  F16H61/02 ,  F16H61/06 ,  F16D25/10 ,  F16D48/06

CPC classification number: F16H61/061 ,  F16H61/0272 ,  F16H2061/0209 ,  F16H2061/0255 ,  F16H59/36 ,  F16H59/46 ,  F16H59/72 ,  Y10T477/69383 ,  Y10T477/69387

Abstract: In one aspect of the present invention, an electronic shift control for a powershift transmission is disclosed. The transmission includes a plurality of speed and direction changing clutches. A plurality of pressure control valves are individually connected to the clutches. A hydraulic pump delivers pressurized hydraulic oil to predetermined pressure control valves to meter hydraulic fluid in response to receiving a clutch command signal. The method produces a shift from a first transmission ratio to a second transmission ratio through disengagement of an off-going clutch associated with the first transmission ratio and engagement of an on-coming clutch associated the second transmission ratio. The method includes filing an on-coming speed clutch, releasing an off-going direction clutch in response to the on-coming speed clutch being filled, and thereafter, gradually increasing the on-coming speed clutch pressure to engage the speed clutch. Finally, the on-coming direction clutch pressure is gradually increased to engage the direction clutch in response to the on-coming speed clutch being engaged.

Abstract translation: 在本发明的一个方面，公开了一种用于动力换挡变速器的电子换挡控制装置。 变速器包括多个速度和方向变换离合器。 多个压力控制阀分别连接到离合器。 液压泵将加压的液压油输送到预定的压力控制阀，以响应于接收到离合器命令信号来计量液压流体。 该方法通过脱离与第一变速比相关联的离合离合器和与第二变速比相关的先前离合器的接合而产生从第一变速比到第二变速比的换档。 该方法包括装载一个即将来临的速度离合器，响应于前进速度离合器被填充而释放一个离开的方向离合器，然后逐渐增加进来速度离合器压力以接合速度离合器。 最后，响应于前进速度离合器接合，逐渐增大的进入方向离合器压力以接合方向离合器。