公开(公告)号：US07128678B2

公开(公告)日：2006-10-31

申请号：US10913901

申请日：2004-08-06

申请人： Hussein A Dourra ,  Robert T Snow

发明人： Hussein A Dourra ,  Robert T Snow

IPC分类号： F16H31/00

CPC分类号： F16H61/0213 ,  F16H3/66 ,  F16H61/686 ,  F16H2061/0218 ,  F16H2061/0444 ,  F16H2061/0448 ,  F16H2200/0047 ,  F16H2200/0052 ,  F16H2200/0056 ,  F16H2200/201 ,  F16H2302/00 ,  Y10T74/19251

摘要： A transmission includes an input shaft, an output shaft, a first plurality of gears, a second plurality of gears, and a series of engagement elements operable between an engaged position and a disengaged position. A controller is further provided to selectively toggle the series of engagement elements between the engaged position and the disengaged position to selectively couple one of the first plurality of gears or one of the second plurality of gears to the input shaft and the output shaft. The series of engagement elements sequentially couples the first plurality of gears to the input shaft and the output shaft during operation of the transmission and selectively couples one of the first plurality of gears or the second plurality of gears to the input shaft and the output shaft during a downshift operation of the transmission.

公开(公告)号：US07344477B2

公开(公告)日：2008-03-18

申请号：US11272535

申请日：2005-11-10

申请人： Hussein A Dourra ,  Teddy Siy ,  Javed Dada ,  Ali M Mourtada

发明人： Hussein A Dourra ,  Teddy Siy ,  Javed Dada ,  Ali M Mourtada

IPC分类号： F16H61/04

CPC分类号： F16H61/061 ,  F16H61/686 ,  F16H2061/044 ,  F16H2061/062 ,  F16H2200/0052 ,  F16H2200/201 ,  F16H2342/04 ,  Y10T477/6937 ,  Y10T477/6939

摘要： An automatic transmission for a vehicle includes a multi-plate clutch having an applied state and a released state and an overrunning clutch having an engaged state and an overrunning state. In addition, the transmission includes a controller that effectuates a gear shift of the transmission by applying a volume of fluid to the multi-plate clutch to toggle the multi-plate clutch from the released state to the applied state at approximately the same time the overrunning clutch is toggled into the overrunning state. The applied volume of fluid at which the multi-plate clutch is applied is substantially given by the following equation: VF=VL−(k*T) where VF is the volume, VL is the instantaneous volume at any time, k is a constant, and T is the input torque to the transmission.

摘要翻译： 用于车辆的自动变速器包括具有施加状态和释放状态的多板离合器和具有接合状态和超速状态的超越离合器。 此外，变速器包括控制器，该控制器通过向多板式离合器施加一定体积的流体来实现变速器的换档，以将多板离合器从释放状态切换到施加状态，大致同时超越 离合器被切换成超越状态。 应用多片离合器的流体的施加体积基本上由下列等式给出：<？in-line-formula description =“In-line Formulas”end =“lead”？> V < （k * T）<？in-line-formula description =“In-line Formulas”end =“tail”？>其中V 是音量，V L L是任何时刻的瞬时音量，k是常数，T是传输的输入转矩。

公开(公告)号：US07179189B2

公开(公告)日：2007-02-20

申请号：US11021607

申请日：2004-12-23

申请人： Hussein A Dourra ,  Ali M Mourtada ,  David L Kwapis ,  Maurice B Leising

发明人： Hussein A Dourra ,  Ali M Mourtada ,  David L Kwapis ,  Maurice B Leising

IPC分类号： F16H31/00

CPC分类号： F16H61/061 ,  F16H61/686 ,  F16H2061/044 ,  F16H2061/0451 ,  F16H2200/0052 ,  F16H2200/201

摘要： An automatic transmission for a vehicle includes an input shaft, an output shaft, a first and second plurality of gears, and a series of engagement elements. The series of engagement elements includes at least one overrunning engagement element in mechanical communication with the second plurality of gears. A controller is operable to disengage a first engagement element associated with a first one of the first plurality of gears and apply a second engagement element associated with a second one of the first plurality of gears to achieve a speed change of the first plurality of gears. The controller is adapted to disengage one of the overrunning engagement elements from engagement with one of the second plurality of gears within a range of 20 to 120 milliseconds after the speed change of the first plurality of gears to accomplish a gear shift of the transmission.

摘要翻译： 用于车辆的自动变速器包括输入轴，输出轴，第一和第二多个齿轮以及一系列接合元件。 一系列接合元件包括与第二多个齿轮机械连通的至少一个超越接合元件。 控制器可操作地脱离与第一多个齿轮中的第一个齿轮相关联的第一接合元件并且施加与第一多个齿轮中的第二齿轮相关联的第二接合元件，以实现第一多个齿轮的速度变化。 所述控制器适于在所述第一多个齿轮的变速之后在20至120毫秒的范围内使所述超越接合元件中的一个与所述第二多个齿轮中的一个脱离接合，以实现变速器的换档。

公开(公告)号：US06869382B2

公开(公告)日：2005-03-22

申请号：US10431261

申请日：2003-05-07

申请人： Maurice B Leising ,  Hussein A Dourra

发明人： Maurice B Leising ,  Hussein A Dourra

IPC分类号： B60W10/06 ,  B60W30/18 ,  F16H3/00 ,  F16H3/091 ,  F16H61/04 ,  B60K41/02

CPC分类号： B60W10/06 ,  B60W10/02 ,  B60W10/10 ,  B60W10/11 ,  B60W10/113 ,  B60W30/18 ,  B60W2710/027 ,  F16H3/006 ,  F16H3/0915 ,  F16H61/0437 ,  F16H61/688 ,  F16H63/18 ,  F16H2061/0425 ,  F16H2061/0429 ,  F16H2061/0444 ,  F16H2306/14 ,  Y10T74/19228 ,  Y10T477/6403 ,  Y10T477/753 ,  Y10T477/78 ,  Y10T477/79

摘要： A method of double-downshifting from a first gear ratio to a second gear ratio includes the steps of first reducing torque transfer from a first clutch to a first driven gear. Engine speed then increases. Next, torque transfer from a second clutch to a third driven gear is increased while simultaneously the first clutch is disengaged from the first driven gear. Torque transfer from the second clutch to the third driven gear is then reduced. Torque transfer from the second clutch to the third driven gear is next increased. The first clutch is engaged to the second driven gear. Then, torque transfer from the first clutch to the second driven gear is increased while simultaneously the torque transfer from the second clutch to the third driven gear is reduced. Finally, the second clutch is disengaged from the third driven gear.

摘要翻译： 从第一齿轮比向第二齿轮比进行双降档的方法包括以下步骤：首先减小从第一离合器到第一从动齿轮的转矩传递。 发动机转速然后增加。 接下来，从第二离合器到第三从动齿轮的扭矩传递增加，同时第一离合器与第一从动齿轮脱离。 然后减小从第二离合器到第三从动齿轮的转矩传递。 从第二离合器到第三从动齿轮的转矩传递接着增加。 第一离合器接合到第二从动齿轮。 然后，从第一离合器到第二从动齿轮的转矩传递增加，同时减小从第二离合器到第三从动齿轮的转矩传递。 最后，第二离合器与第三从动齿轮分离。