Vehicle rapid deceleration detection device
    1.
    发明授权
    Vehicle rapid deceleration detection device 有权
    车辆快速减速检测装置

    公开(公告)号:US07099763B2

    公开(公告)日:2006-08-29

    申请号:US10670158

    申请日:2003-09-24

    IPC分类号: G06F7/60 G06F19/00

    摘要: A vehicle speed memory unit stores a vehicle speed at a prior predetermined time, the vehicle speed being calculated from an interval of the vehicle speed pulse. A first rapid deceleration detecting section compares an elapsed time from a time the vehicle speed pulse signal is inputted, measured by an elapsed time measuring unit, with a pulse interval corresponding to a predetermined deceleration relative to a vehicle speed stored by the vehicle speed memory unit, or a second rapid deceleration detecting section calculates an undetermined vehicle speed from the elapsed time measured by the elapsed time measuring unit, and calculates a deceleration from the undetermined vehicle speed and the vehicle speed at the prior predetermined time, and compares the calculated deceleration with a predetermined deceleration threshold value. Thus, rapid vehicle deceleration can immediately be determined at the present time without waiting for the determination of the vehicle speed after input of the next pulse signal.

    摘要翻译: 车速存储单元将车速存储在先前的预定时间,车速是根据车速脉冲的间隔计算的。 第一快速减速检测部将通过经过时间测定部测定的车速信号输入时间的经过时间与相当于车速存储部所存储的车速的规定的减速度相对应的脉冲间隔进行比较 或第二急速减速检测部根据经过时间测量单元测量的经过时间计算未确定的车速,并且根据在预定时间内的未确定车速和车速计算减速度,并将计算出的减速度与 预定的减速度阈值。 因此,可以立即在当前时刻确定快速车辆减速,而不用等待下一个脉冲信号输入之后的车速的确定。

    Control apparatus for an automatic transmission and related control method
    3.
    发明授权
    Control apparatus for an automatic transmission and related control method 失效
    自动变速箱控制装置及相关控制方法

    公开(公告)号:US07645210B2

    公开(公告)日:2010-01-12

    申请号:US12149021

    申请日:2008-04-25

    IPC分类号: B60W10/04

    摘要: In executing an ETC cooperative downshift operation based on a driver's intent to decelerate, this system executes an engine output increasing control (e.g. a combination of a throttle opening control and a fuel injection restoring control) for increasing the engine output irrespective of driver's accelerator operation. At the timing a reduction amount in an input shaft rotational speed Nt exceeds a predetermined value K after the ETC cooperative downshift control is started, it is presumed that the hydraulic pressure of a to-be-disengaged clutch is already reduced to a hydraulic pressure level equivalent to a predetermined transmission torque capacity that causes no undesirable acceleration or shock even if the engine output increasing control is started. And, under such assumption, the engine output increasing control is started at this timing. Accordingly, the present invention can accurately set the start timing of the engine output increasing control so as to suppress any undesirable acceleration or shock caused by the engine output increasing control.

    摘要翻译: 在执行基于驾驶员减速意图的ETC协调降档操作时,该系统执行发动机输出增加控制(例如,节气门打开控制和燃料喷射恢复控制的组合),用于增加发动机输出,而不管驾驶员的加速器操作。 在ETC协调降档控制开始之后,在输入轴转速Nt的减少量超过规定值K的时刻,假定要被解除离合的离合器的液压已经降低到液压水平 相当于即使开始发动机输出增加控制也不会引起不期望的加速或冲击的预定传动扭矩能力。 并且,在这种假设下,在该时刻开始引擎输出增加控制。 因此,本发明可以精确地设定发动机输出增加控制的开始时刻,以便抑制由发动机输出增加控制引起的任何不期望的加速或冲击。

    Lockup control system of automatic transmission

    公开(公告)号:US06780140B2

    公开(公告)日:2004-08-24

    申请号:US10420004

    申请日:2003-04-22

    IPC分类号: F16H6158

    摘要: In a lockup control system of an automatic transmission with a lockup torque converter, a controller pre-stores a predetermined lockup control map including at least a predetermined coast slip lockup area, within which the system executes a slip lockup control mode under the vehicle's coasting condition, so that a speed difference between input and output speeds of the torque converter is brought closer to a predetermined value. The controller determines whether a first transition from the vehicle's driving condition to the predetermined coast slip lockup area occurs in a release mode of the lockup clutch or a second transition from the vehicle's coasting condition to the predetermined coast slip lockup area occurs in the release mode. When the first transition occurs, the lockup clutch is conditioned in the slip lockup control mode. When the second transition occurs, the lockup clutch is conditioned in the release mode.

    Control apparatus for an automatic transmission and related control method
    7.
    发明授权
    Control apparatus for an automatic transmission and related control method 失效
    自动变速箱控制装置及相关控制方法

    公开(公告)号:US07503873B2

    公开(公告)日:2009-03-17

    申请号:US11214885

    申请日:2005-08-31

    IPC分类号: B60W10/10

    摘要: In executing an ETC cooperative downshift operation based on a driver's intent to decelerate, this system executes an engine output increasing control (e.g. a combination of a throttle opening control and a fuel injection restoring control) for increasing the engine output irrespective of driver's accelerator operation. At the timing a reduction amount in an input shaft rotational speed Nt exceeds a predetermined value K after the ETC cooperative downshift control is started, it is presumed that the hydraulic pressure of a to-be-disengaged clutch is already reduced to a hydraulic pressure level equivalent to a predetermined transmission torque capacity that causes no undesirable acceleration or shock even if the engine output increasing control is started. And, under such assumption, the engine output increasing control is started at this timing. Accordingly, the present invention can accurately set the start timing of the engine output increasing control so as to suppress any undesirable acceleration or shock caused by the engine output increasing control.

    摘要翻译: 在执行基于驾驶员减速意图的ETC协调降档操作时,该系统执行发动机输出增加控制(例如,节气门打开控制和燃料喷射恢复控制的组合),用于增加发动机输出,而不管驾驶员的加速器操作。 在ETC协调降档控制开始之后,在输入轴转速Nt的减少量超过规定值K的时刻,假定要被解除离合的离合器的液压已经降低到液压水平 相当于即使开始发动机输出增加控制也不会引起不期望的加速或冲击的预定传动扭矩能力。 并且,在这种假设下,在该时刻开始引擎输出增加控制。 因此,本发明可以精确地设定发动机输出增加控制的开始时刻,以便抑制由发动机输出增加控制引起的任何不期望的加速或冲击。

    Control apparatus for an automatic transmission and related control method
    8.
    发明申请
    Control apparatus for an automatic transmission and related control method 失效
    自动变速箱控制装置及相关控制方法

    公开(公告)号:US20080207394A1

    公开(公告)日:2008-08-28

    申请号:US12149021

    申请日:2008-04-25

    IPC分类号: B60W10/04 F16H61/00 G06F19/00

    摘要: In executing an ETC cooperative downshift operation based on a driver's intent to decelerate, this system executes an engine output increasing control (e.g. a combination of a throttle opening control and a fuel injection restoring control) for increasing the engine output irrespective of driver's accelerator operation. At the timing a reduction amount in an input shaft rotational speed Nt exceeds a predetermined value K after the ETC cooperative downshift control is started, it is presumed that the hydraulic pressure of a to-be-disengaged clutch is already reduced to a hydraulic pressure level equivalent to a predetermined transmission torque capacity that causes no undesirable acceleration or shock even if the engine output increasing control is started. And, under such assumption, the engine output increasing control is started at this timing. Accordingly, the present invention can accurately set the start timing of the engine output increasing control so as to suppress any undesirable acceleration or shock caused by the engine output increasing control.

    摘要翻译: 在执行基于驾驶员减速意图的ETC协调降档操作时,该系统执行发动机输出增加控制(例如,节气门打开控制和燃料喷射恢复控制的组合),用于增加发动机输出,而不管驾驶员的加速器操作。 在ETC协调降档控制开始之后,在输入轴转速Nt的减少量超过规定值K的时刻,假定要被解除离合的离合器的液压已经降低到液压水平 相当于即使开始发动机输出增加控制也不会引起不期望的加速或冲击的预定传动扭矩能力。 并且,在这种假设下,在该时刻开始引擎输出增加控制。 因此,本发明可以精确地设定发动机输出增加控制的开始时刻,以便抑制由发动机输出增加控制引起的任何不期望的加速或冲击。

    Downshift control for automotive automatic transmission
    9.
    发明授权
    Downshift control for automotive automatic transmission 有权
    降档控制用于汽车自动变速器

    公开(公告)号:US07314428B2

    公开(公告)日:2008-01-01

    申请号:US11290820

    申请日:2005-12-01

    IPC分类号: F16H61/06

    摘要: An automotive automatic transmission control system is provided which is designed to increase the output of an engine in response to a driver's request to downshift a transmission for setting up the engine braking and to load the amount of working fluid to an on-coming clutch quickly during the downshift. The system works to determine whether the loaded amount of working fluid is excessive or lacking using the speeds of an input shaft of the transmission and the engine to correct the amount of working fluid to be used upon a subsequent downshift request. The use of the two speeds enables the fact that the loaded fluid amount is excessive which arises from a rise in the speed of the input shaft caused by the engine output increasing control, not by completion of the loading of the working fluid to the on-coming clutch to be found accurately.

    摘要翻译: 提供了一种汽车自动变速器控制系统,其被设计成响应于驾驶员降低用于设置发动机制动的变速器的要求而增加发动机的输出,并且将工作流体的量快速地加载到即将到来的离合器 降档。 该系统用于确定使用变速器和发动机的输入轴的速度是否过大或缺少工作流体的装载量,以校正随后的降档请求时要使用的工作流体的量。 使用这两个速度使得由于由发动机输出增加控制引起的输入轴的速度升高而引起的加载流体量过大,而不是通过完成对工作流体的加载, 准确地找到离合器。