Control system for automatic vehicle transmissions
    1.
    发明授权
    Control system for automatic vehicle transmissions 失效
    自动车辆变速器控制系统

    公开(公告)号:US06516261B2

    公开(公告)日:2003-02-04

    申请号:US09382205

    申请日:1999-08-23

    IPC分类号: G06F1700

    摘要: A system for controlling an automatic transmission of a vehicle which determines a downgrade or upgrade parameter based on the vehicle acceleration and selects one from among a plurality of shift programs based on the determined grade parameter to determine a gear ratio based on the selected shift program. The system includes a navigation system which determines the instantaneous vehicle position and outputs road information including upgrade/downgrade condition of road including the determined instantaneous vehicle position. In the system, the grade parameter is corrected based on the navigation information and the grade parameter such that the one from among a plurality of shift programs is selected based on the corrected grade parameter, thereby enhancing drivability during downgrade running, without being affected even if the navigation information is temporarily invalid.

    摘要翻译: 一种用于控制车辆的自动变速器的系统,其基于车辆加速度确定降级或升级参数,并且基于所确定的等级参数从多个换档程序中选择一个,以基于所选择的换档程序来确定变速比。 该系统包括确定瞬时车辆位置并输出道路信息的导航系统,包括包括所确定的瞬时车辆位置的道路的升级/降级状态。 在该系统中,基于导航信息和等级参数来校正坡度参数,使得基于校正的坡度参数选择多个班次程序中的一个,从而提高降级运行期间的驾驶性能,即使不受影响 导航信息暂时无效。

    Control system for automatic vehicle transmission
    2.
    发明授权
    Control system for automatic vehicle transmission 失效
    自动车辆传动控制系统

    公开(公告)号:US6085139A

    公开(公告)日:2000-07-04

    申请号:US964351

    申请日:1997-11-04

    摘要: A control system for an automatic vehicle transmission which has auto-shifting means or auto-shift mode for determining a gear to be shifted to in accordance with predetermined gearshift scheduling characteristics in response to the detected vehicle speed and the engine load, and manual-shifting means or manual-shift mode for determining a gear to be shifted to in response to a manual-shift command generated by the vehicle driver. The system further includes auto-downshifting means or sub-auto-shift mode for determining a gear to be downshifted to if the detected vehicle speed is less than a threshold value when the manual-shifting means is in operation. In the system it is estimated whether the vehicle is hill climbing or hill descending, and the threshold value is increasing when the vehicle is hill climbing or descending. With the arrangement, it becomes possible to downshift before the drivability or driver's comfort is degraded during the hill climbing or descending.

    摘要翻译: 一种用于自动车辆变速器的控制系统,其具有自动换档装置或自动换档模式,用于根据检测到的车速和发动机负载,根据预定的换档调度特性确定要转向的档位,以及手动换挡 用于根据由车辆驾驶员产生的手动换档命令确定要移动的档位的装置或手动换挡模式。 该系统还包括自动换档装置或副自动换档模式,用于确定当手动换档装置运行时被检测到的车速小于阈值的档位。 在该系统中,估计车辆是爬坡还是降坡,并且当车辆爬坡或下降时阈值增加。 通过这种安排,可以在爬坡或下降期间驾驶员或驾驶员的舒适度降级之前降档。

    Control system for automatic vehicle transmission
    5.
    发明授权
    Control system for automatic vehicle transmission 失效
    自动车辆传动控制系统

    公开(公告)号:US5908369A

    公开(公告)日:1999-06-01

    申请号:US964217

    申请日:1997-11-04

    摘要: A control system for an automatic vehicle transmission having an auto-shifting device for determining an auto-shifting gearshift signal indicative of a gear to be shifted to in accordance with predetermined gearshift scheduling characteristics in response to a detected vehicle speed and an engine load, and a manual-shifting device for determining a manual-shifting signal indicative of a gear to be shifted to in response to a manual-shift command. A gearshift is conducted in response to one of the auto-shifting gearshift signal and the manual-shifting gearshift signal. In the system, the manual-shifting command is inhibited from being accepted for a predetermined period since the gearshift device conducted a gearshift in response to the auto-shifting gearshift signal. With this arrangement, it is possible to prevent down shifting from occurring consecutively so as to prevent drivability or driver's comfort from being degraded.

    摘要翻译: 一种用于自动车辆变速器的控制系统,具有自动换挡装置,用于响应于检测到的车速和发动机负载,根据预定的换档调度特性来确定表示要转向的齿轮的自动变速换档信号;以及 手动换档装置,用于响应于手动换档指令,确定指示要移动的档位的手动换档信号。 响应于自动变速换档信号和手动换挡换档信号之一进行换档。 在该系统中,由于变速装置响应于自动变速换档信号进行变速,所以手动换档指令被禁止接受预定时间段。 通过这种布置,可以防止连续发生下降变化,以防止驾驶员或驾驶员的舒适性降低。

    Control apparatus for hydraulically operated vehicular transmission
    6.
    发明授权
    Control apparatus for hydraulically operated vehicular transmission 失效
    液压操纵车辆变速箱控制装置

    公开(公告)号:US5887483A

    公开(公告)日:1999-03-30

    申请号:US935956

    申请日:1997-09-23

    摘要: When switching to a forward running is made while a vehicle is running in a reverse direction, a switching to the forward running condition is made at an early time to thereby prevent the deterioration of the durability of the hydraulic engaging element due to slipping. For that purpose, when a vehicle speed (V) has exceeded a predetermined value (YVa) in a reverse range (R) and also when the vehicle speed (V) has never fallen below the predetermined value (YVa) in a neutral range (N), a reverse signal (FREV=1) is outputted. If FREV=1 at the time of switching to the forward range, the relationship between the vehicle speed and the speed stage (speed change map) is set to one (a reverse-running-measure speed change map) which is different from that at an ordinary time, to thereby determine the speed stage to be established. Then, a low speed stage is established even at a relatively high vehicle speed. Switching is thus made at an early time to the forward running condition with a large torque to be transmitted via the low speed stage.

    摘要翻译: 当在车辆沿相反方向行驶时进行向前行驶切换时,早期切换到前进行驶状态,从而防止由于滑动导致的液压啮合元件的耐久性的劣化。 为此目的,当车速(V)在反向范围(R)中超过预定值(YVa)时,以及当车速(V)从未在中性值范围内下降到预定值(YVa)以下时 N),则输出反向信号(FREV = 1)。 如果在切换到正向范围时FREV = 1,则将车速与速度级(速度变化图)的关系设定为与后者的速度不同的一个(反向行驶速度变化图) 一般的时间,从而确定要建立的速度。 然后,即使在相对高的车速下也建立了低速级。 因此,在通过低速级传递大扭矩的情况下,在早期进行切换到正向运行状态。

    Control apparatus for hydraulically operated vehicular transmission
    7.
    发明授权
    Control apparatus for hydraulically operated vehicular transmission 失效
    液压操纵车辆变速箱控制装置

    公开(公告)号:US5956999A

    公开(公告)日:1999-09-28

    申请号:US935957

    申请日:1997-09-23

    IPC分类号: F16H61/04 F16H61/02 F16H61/00

    摘要: The disadvantage in the conventional transmission in which a high speed stage is established during the initialization operation by the starting up of an electronic control circuit, is eliminated. The disadvantage is that the rotational speed of an engine lowers due to the establishment of the high speed stage during the initialization operation at the time of running in a low speed stage, with the result that the recovery of the driving force after the completion of the initialization operation is delayed. To solve this disadvantage, valves that can switch the transmission to a neutral condition in the running range are provided. During the initialization operation of the electronic control circuit (20), a neutral signal which shifts the transmission (1) to the neutral condition is output (S902) to the valves. If the transmission (1) is in a running range, there is performed an in-gear control, after the completion of the initialization operation, to establish a speed stage depending on the vehicle speed at that time (S908).

    摘要翻译: 消除了通过启动电子控制电路在初始化操作期间建立高速级的常规传输中的缺点。 缺点是,由于在低速阶段运行时的初始化操作期间建立高速级,发动机的转速降低,结果是在完成后的驱动力的恢复 初始化操作被延迟。 为了解决这个缺点,提供了可以将变速器切换到行驶范围内的中立状态的阀。 在电子控制电路(20)的初始化操作期间,输出将变速器(1)换档到空档的空档信号(S902)。 如果变速器(1)处于运行范围,则在完成初始化操作之后进行齿轮控制,以根据当时的车速建立速度级(S908)。

    Control system for vehicle automatic transmission
    8.
    发明授权
    Control system for vehicle automatic transmission 失效
    车辆自动变速器控制系统

    公开(公告)号:US5531654A

    公开(公告)日:1996-07-02

    申请号:US295553

    申请日:1994-08-25

    摘要: A control system of a vehicle automatic transmission in which an engine load and a vehicle speed are detected and used to determine a vehicle acceleration in accordance with the preestablished characteristics. An actual vehicle acceleration is at the same time calculated in response to the detected vehicle speed. The difference therebetween is then calculated and the calculated value is added to a difference calculated earlier to obtain an average therebetween. Five gear shifting scheduling maps, for example one for moderate hill climbing, one for level-road running, one for steep hill descent, are preestablished and in response to the average obtained, one of the maps is selected. A gear shifting is controlled based on the selected map. A driver's intention to decelerate is estimated and is compared with a reference value which increases with increasing said average indicative of the grade of hill that the vehicle is descending. As a result, downshifting will not occur until the driver's deceleration intention becomes great at steep hill descending.

    摘要翻译: 一种车辆自动变速器的控制系统,其中检测发动机负荷和车速并根据预先确定的特性来确定车辆加速度。 根据检测到的车速计算实际的车辆加速度。 然后计算它们之间的差异,并将计算出的值加到较早计算的差值以获得其间的平均值。 五个变速调度图,例如一个用于适度爬坡,一个用于水平道路运行,一个用于陡坡下降,也是预先建立的,并且响应于获得的平均值,选择一个地图。 基于选择的图来控制换档。 驾驶员减速的意图是估计的,并且与参考值进行比较,该参考值随着表示车辆下降的坡度的平均值的增加而增加。 因此,在陡坡下降的驾驶员的减速意图变得很大之前,不会发生降档。

    Control system for automatic transmission for vehicle
    9.
    发明授权
    Control system for automatic transmission for vehicle 有权
    车辆自动变速箱控制系统

    公开(公告)号:US5931762A

    公开(公告)日:1999-08-03

    申请号:US137102

    申请日:1998-08-20

    IPC分类号: F16H59/50 F16H61/16 F16H61/06

    摘要: When slipping is generated during the upshifting from a first gear shift stage to a second gear shift stage on ice or the like, a control for prohibiting the upshifting from the second gear shift stage to a third gear shift stage can be carried out precisely. A control system is designed so that when a slipping state is detected on ice having a lower road surface friction coefficient by a slipping state determining device, the upshifting of an automatic transmission from a second gear shift stage to a third gear shift stage is prohibited. In this control system, the time required for the upshifting from a first gear shift stage to the second gear shift stage is measured. If such time is shorter than a first predetermined time, it is determined that a slipping has been generated during the upshifting, and the upshifting from the second gear shift stage to the third gear shift stage is prohibited for a second predetermined time. Thus, even when the determination of the slipping state by the slipping-state determining device is not in time, the further upshifting of the automatic transmission is prohibited. Therefore, it is possible to reliably avoid the carrying-out of undesirable upshifting.

    摘要翻译: 在从第一变速级升档到第二变速级在冰等上升档时产生滑动时,可以精确地执行用于禁止从第二档位升档到第三档位的升档的控制。 控制系统被设计成使得当通过滑动状态确定装置在具有较低路面摩擦系数的冰上检测到滑动状态时,禁止将自动变速器从第二换档级升档到第三档位。 在该控制系统中,测量从第一档位到第二档位的升档所需的时间。 如果这样的时间短于第一预定时间,则确定在升档期间已经产生滑动,并且在第二预定时间内禁止从第二换档级到第三档位的升档。 因此,即使当滑移状态确定装置的滑动状态的确定不及时时,禁止进一步升高自动变速器。 因此,可以可靠地避免不希望的升档。