Control apparatus for synchromesh type automatic transmission system
    22.
    发明授权
    Control apparatus for synchromesh type automatic transmission system 有权
    同步自动变速系统控制装置

    公开(公告)号:US06428446B1

    公开(公告)日:2002-08-06

    申请号:US09784180

    申请日:2001-02-16

    Applicant: Toshio Ohtsuka

    Inventor: Toshio Ohtsuka

    Abstract: A control apparatus for a synchromesh type automatic transmission system of a motor vehicle capable of suppressing speed-stage downshift operation which may occur successively upon application of sudden braking as well as occurrence of a gear squeaking phenomenon and shock due to speed change brought about by the downshift operation. The control apparatus includes a shift/select actuator of a multi-stage speed change gear unit (3), a brake switch an accelerator pedal position sensor, an output rotation speed sensor, and a speed stage control means for controlling the shift/select actuator on the basis of detection signals outputted from the sensors. When it is decided that the brake switch is in a closed state and that the deceleration determined arithmetically on the basis of the vehicle speed is not greater than a predetermined value the multi-stage speed change gear unit is shifted to a neutral position and thereafter the decision as to the speed change is suspended.

    Abstract translation: 一种用于机动车辆的同步啮合式自动变速器系统的控制装置,其能够抑制在施加突然制动时可能连续发生的速度级降档操作,以及由于速度变化引起的齿轮吱吱响现象和冲击 降档操作。 控制装置包括多级变速齿轮单元(3)的换档/选择致动器,制动开关,加速踏板位置传感器,输出转速传感器和速度级控制装置,用于控制换档/选择致动器 基于从传感器输出的检测信号。 当判断为制动开关处于关闭状态,并且基于车速计算的减速度不大于预定值时,多级变速齿轮单元转移到中立位置,此后 关于速度变化的决定被暂停。

    Method for control of an automatic transmission of a motor vehicle
    26.
    发明授权
    Method for control of an automatic transmission of a motor vehicle 失效
    用于控制机动车辆的自动变速器的方法

    公开(公告)号:US5549519A

    公开(公告)日:1996-08-27

    申请号:US170183

    申请日:1993-12-21

    Abstract: A method for control of a preferably electro-hydraulically activated automatic transmission of a motor vehicle equipped with an internal combustion engine provides for prevention of upshifting, i.e. reduction in translation in and before a curve. The upshift prevention is initiated if pressure is removed quickly from the gas pedal in idle operation. The upshift prevention is cancelled if the vehicle does not drive through a curve after elapse of a certain time period after traction operation is recognized. If idle operation is again recognized during elapse of the time period, the upshift prevention is maintained for another time period. After termination of the upshift prevention, step by step adjustment of the gear level to the value determined by the shifting characteristic field takes place.

    Abstract translation: PCT No.PCT / EP92 / 01157 Sec。 371日期:1993年12月21日 102(e)日期1993年12月21日PCT提交日期为1992年5月22日PCT公布。 公开号WO93 / 00534 日期1993年1月7日用于控制配备有内燃机的机动车辆的优选电动液压自动变速器的方法提供了防止升档,即在曲线之内和之后减少平移。 如果在怠速运行中从加速踏板快速移除压力,则开始防止升档。 如果车辆在牵引操作被识别之后经过一定时间段后不能通过曲线,则取消换高档。 如果在经过该时间段期间再次识别到空转操作,则保持换档时间。 在防止升档结束后,将齿轮级逐步调整到由换档特性场确定的值。

Patent Agency Ranking