Control of vehicle automatic transmission
    1.
    发明授权
    Control of vehicle automatic transmission 失效
    车辆自动变速器控制

    公开(公告)号:US4942530A

    公开(公告)日:1990-07-17

    申请号:US162642

    申请日:1988-03-01

    摘要: An automatic transmission including a torque converter and a multiple stage transmission gear mechanism. A hydraulically actuated brake and a hydraulically actuated clutch is provided for alternate engagement to select alternately one of two adjacent gear stages. In order to prevent gear shift shock, the engaging of the clutch or the brake is controlled so that the engaging rate is faster for a predetermined time period in an initial period of a gear shifting operation than in a remainder period. A control circuit is provided to monitor the gear shifting operation and modifying the predetermined time period in accordance with the results of the latest gear shifting operation and store the modified value for the use in a next gear shifting operation.

    摘要翻译: 一种包括变矩器和多级传动齿轮机构的自动变速器。 提供液压致动制动器和液压致动离合器用于交替接合以交替选择两个相邻齿轮级中的一个。 为了防止变速冲击,控制离合器或制动器的接合,使得接合速度在变速操作的初始期间比在剩余时间段内的预定时间段更快。 提供控制电路以监视变速操作并根据最新变速操作的结果修改预定时间段,并存储在下一个换档操作中使用的修改值。

    Control of a vehicle automatic transmission
    2.
    发明授权
    Control of a vehicle automatic transmission 失效
    控制车辆自动变速器

    公开(公告)号:US4709596A

    公开(公告)日:1987-12-01

    申请号:US925244

    申请日:1986-10-30

    摘要: A vehicle automatic transmission having a torque converter and a multiple stage transmission gear mechanism connected with the torque converter. The gear stage of the gear mechanism is selected in accordance with the vehicle operating condition. The transmission includes friction members. One of the friction members is engaged for a higher gear stage and disengaged for a lower gear stage whereas the other is disengaged for the higher gear stage and engaged for the lower gear stage. In shifting down from the higher gear stage to the lower gear stage, the other friction member is engaged after a predetermined time from the disengagement of the one friction member.

    摘要翻译: 一种车辆自动变速器,其具有与变矩器连接的变矩器和多级变速齿轮机构。 根据车辆运行状况选择齿轮机构的档位。 传动装置包括摩擦件。 其中一个摩擦件被接合在较高的齿轮级上,并分离成一个较低的档位,而另一个则与较高的档位分离,并与下档相啮合。 在从较高档位转换到低档级时,另一个摩擦件在从一个摩擦件脱离的预定时间之后啮合。