Step-by-step variable transmission and method for controlling the same
    1.
    发明授权
    Step-by-step variable transmission and method for controlling the same 有权
    分步变速传动及其控制方法

    公开(公告)号:US07472616B2

    公开(公告)日:2009-01-06

    申请号:US11775134

    申请日:2007-07-09

    IPC分类号: F16H59/00 F16H61/00 F16H63/00

    摘要: A method for controlling an automated step-by-step variable transmission which has a plurality of gear stages which set up a different transmission ratio in each case. The method comprises the steps: a) detecting whether a gear stage is to be engaged, b) detecting an input actual variable which is substantially proportional to an input rotational speed of the step-by-step variable transmission, and an output actual variable which is substantially proportional to an output rotational speed of the transmission, c) checking as to whether a difference between a ratio of the input and the output actual variables and the transmission ratio which would be set up by the gear stage is smaller for a predefined timespan than a predefined tolerance range, and d) determining a fault state if the difference does not lie within the tolerance range for the predefined timespan.

    摘要翻译: 一种用于控制自动逐步可变传动的方法,其具有在每种情况下建立不同传动比的多个齿轮级。 该方法包括以下步骤:a)检测齿轮级是否啮合,b)检测与逐步可变传动的输入转速基本成比例的输入实际变量,以及输出实际变量, 大体上与变速器的输出转速成比例,c)检查输入和输出实际变量的比率与由齿轮级设定的传动比之间的差是否在预定时间段内较小 并且d)如果所述差不在所述预定时间范围的公差范围内,则确定故障状态。

    Method for shifting a gear in a multi-stage gearbox of a motor vehicle as a function of the drive input shaft rotational speed

    公开(公告)号:US07806804B2

    公开(公告)日:2010-10-05

    申请号:US12695086

    申请日:2010-01-27

    IPC分类号: B60W10/00

    摘要: Method for shifting, in particular engaging and/or disengaging, gears in an automatic multi-stage gearbox of a motor vehicle, wherein the gearbox comprises a drive input shaft (18) connectable to an engine drive output shaft (16) by means of a friction clutch (12) which acts as a separating clutch (12), and a drive output shaft (20) couplable to a drive wheel or to drive wheels of the motor vehicle, wherein a shift process takes place, in particular only, as a function of rotational speeds (n) of the shafts, wherein each gear is assigned a synchronizing device (36), which acts as a shift clutch, in order to connect the drive input shaft (18) to the drive output shaft (20), comprising the following steps: setting the separating clutch (12) into a dragging position such that a low, preferably predefined, drag torque is transmitted from the engine drive output shaft (16) to the drive input shaft (18), which drag torque is sufficient to bring a rotational speed (nIS) of the drive input shaft (18) when the shift clutch (36) is open to a rotational speed (nM) of the engine drive output shaft (16); adjusting the rotational speed of the engine drive output shaft (16) to a predetermined value (I) which differs sufficiently from a rotational speed of a source gear or from rotational speed of a target gear; setting the shift clutch (36) of the source gear towards an open position in order to separate the drive input shaft (18) and drive output shaft (20) from one another; detecting the rotational speed (nIS) of the drive input shaft for a predetermined time period which follows at least a time (t1) when the shift clutch (36) of the source gear is in the open position; determining a change in the rotational speed (nIS) of the drive input shaft (18) during the predetermined time period; and determining whether the change which is determined in this way lies within predefined tolerances of an expected rotational speed change (FIG. 8).

    METHOD FOR SHIFTING A GEAR IN A MULTI-STAGE GEARBOX OF A MOTOR VEHICLE AS A FUNCTION OF THE DRIVE INPUT SHAFT ROTATIONAL SPEED

    公开(公告)号:US20100160113A1

    公开(公告)日:2010-06-24

    申请号:US12695086

    申请日:2010-01-27

    IPC分类号: B60W10/00

    摘要: Method for shifting, in particular engaging and/or disengaging, gears in an automatic multi-stage gearbox of a motor vehicle, wherein the gearbox comprises a drive input shaft (18) connectable to an engine drive output shaft (16) by means of a friction clutch (12) which acts as a separating clutch (12), and a drive output shaft (20) couplable to a drive wheel or to drive wheels of the motor vehicle, wherein a shift process takes place, in particular only, as a function of rotational speeds (n) of the shafts, wherein each gear is assigned a synchronizing device (36), which acts as a shift clutch, in order to connect the drive input shaft (18) to the drive output shaft (20), comprising the following steps: setting the separating clutch (12) into a dragging position such that a low, preferably predefined, drag torque is transmitted from the engine drive output shaft (16) to the drive input shaft (18), which drag torque is sufficient to bring a rotational speed (nIS) of the drive input shaft (18) when the shift clutch (36) is open to a rotational speed (nM) of the engine drive output shaft (16); adjusting the rotational speed of the engine drive output shaft (16) to a predetermined value (I) which differs sufficiently from a rotational speed of a source gear or from rotational speed of a target gear; setting the shift clutch (36) of the source gear towards an open position in order to separate the drive input shaft (18) and drive output shaft (20) from one another; detecting the rotational speed (nIS) of the drive input shaft for a predetermined time period which follows at least a time (t1) when the shift clutch (36) of the source gear is in the open position; determining a change in the rotational speed (nIS) of the drive input shaft (18) during the predetermined time period; and determining whether the change which is determined in this way lies within predefined tolerances of an expected rotational speed change.

    STEP-BY-STEP VARIABLE TRANSMISSION AND METHOD FOR CONTROLLING THE SAME
    4.
    发明申请
    STEP-BY-STEP VARIABLE TRANSMISSION AND METHOD FOR CONTROLLING THE SAME 有权
    逐步变化的变速器及其控制方法

    公开(公告)号:US20080006107A1

    公开(公告)日:2008-01-10

    申请号:US11775134

    申请日:2007-07-09

    IPC分类号: F16H3/08

    摘要: A method for controlling an automated step-by-step variable transmission which has a plurality of gear stages which set up a different transmission ratio in each case. The method comprises the steps: a) detecting whether a gear stage is to be engaged, b) detecting an input actual variable which is substantially proportional to an input rotational speed of the step-by-step variable transmission, and an output actual variable which is substantially proportional to an output rotational speed of the transmission, c) checking as to whether a difference between a ratio of the input and the output actual variables and the transmission ratio which would be set up by the gear stage is smaller for a predefined timespan than a predefined tolerance range, and d) determining a fault state if the difference does not lie within the tolerance range for the predefined timespan.

    摘要翻译: 一种用于控制自动逐步可变传动的方法,其具有在每种情况下建立不同传动比的多个齿轮级。 该方法包括以下步骤:a)检测齿轮级是否啮合,b)检测与逐步可变传动的输入转速基本成比例的输入实际变量,以及输出实际变量, 大体上与变速器的输出转速成比例,c)检查输入和输出实际变量的比率与由齿轮级设定的传动比之间的差是否在预定时间段内较小 并且d)如果所述差不在所述预定时间范围的公差范围内,则确定故障状态。

    Method for electroplating a conducting surface
    7.
    发明授权
    Method for electroplating a conducting surface 失效
    电导电表面的方法

    公开(公告)号:US4929315A

    公开(公告)日:1990-05-29

    申请号:US328033

    申请日:1989-02-09

    IPC分类号: B60B7/02 C25D5/02 C25D5/56

    CPC分类号: C25D5/022

    摘要: A process for galvanic coating of a selected area on a preform, comprising applying an electrically conducting metallic primer to substantially the entire surface of the preform; masking a portion of the surface coated leaving exposed an unmasked portion not to be coated; forming a clear coat to the exposed portion not to be galvanized; removing the mask to expose the portion of the surface not clear coated; and galvanically coating the area of metallic primer.

    摘要翻译: PCT No.PCT / EP87 / 00433 Sec。 371日期1989年2月9日第 102(e)日期1989年2月9日PCT 1987年8月7日PCT PCT。 出版物WO88 / 03183 日期:1988年5月5日。一种用于预成型体上的选定区域的电镀涂层的方法,包括将导电金属底漆施加到预成型件的整个表面上; 掩盖涂层表面的一部分露出未被涂覆的未掩模部分; 在未被镀锌的暴露部分上形成透明涂层; 去除面罩以暴露表面的部分不透明涂层; 并电镀涂金属底漆的面积。