Method of shift torque management for an electronic automatic
transmission system
    3.
    发明授权
    Method of shift torque management for an electronic automatic transmission system 失效
    电子自动变速系统换档转矩管理方法

    公开(公告)号:US5265498A

    公开(公告)日:1993-11-30

    申请号:US876637

    申请日:1992-04-30

    摘要: A method is provided for controlling engine torque from a vehicle engine to an electronically controlled transmission in response to predetermined conditions existing in the transmission. The method includes the steps of saving in memory data corresponding to a spark advance and fuel flow setting, detecting whether an upshift or downshift is in process, determining if the upshift or downshift has just started if an upshift or downshift is detected, variably adjusting the spark advance setting of the engine in accordance with a detected upshift or downshift if the upshift or downshift has just started, decrementing the amount of fuel flow to the engine during adjustment of the spark advance, and returning both the fuel flow and spark advance to its original setting.

    摘要翻译: 提供了一种用于响应于存在于变速器中的预定条件来控制从车辆发动机到电子控制变速器的发动机转矩的方法。 该方法包括以下步骤:保存对应于火花提前和燃料流量设定的存储器数据,检测升档或降档正在进行中,确定是否检测到换高档或降挡时刚升起或降档,可变地调节 如果升档或降挡刚刚开始,则根据检测到的升档或降档,引擎的火花提前设定,在调节火花提前期间减少向发动机的燃料流量,并将燃料流和火花提前返回其中 原始设置。

    Method for determining fuel composition
    5.
    发明授权
    Method for determining fuel composition 失效
    确定燃料组成的方法

    公开(公告)号:US5400762A

    公开(公告)日:1995-03-28

    申请号:US933552

    申请日:1992-08-24

    摘要: A method is provided for checking the function of a fuel composition sensor and for learning the percent alcohol content of a fuel used in a motor vehicle capable of operating on more than one type of fuel, as an alternative to a fuel composition sensor. The present invention improves the reliability of a motor vehicle utilizing a fuel composition sensor by allowing vehicle operation to continue uninterrupted, such as when a short or open condition exists within the sensor. The method first determines whether conditions are such that the percent alcohol content of a fuel should be "learned". If conditions are appropriated, then necessary engine operating conditions are first initialized. The oxygen sensor output signal is checked to determine whether the engine is operating too rich or lean. The value of percent alcohol content stored in the engine control unit's memory is modified in the direction of stoichiometric engine operation. In this manner, the engine is able to "learn" the percent alcohol content of the fuel and make the appropriate adjustments to operating parameters.

    摘要翻译: 提供了一种用于检查燃料组成传感器的功能并且用于学习在能够对多于一种类型的燃料进行操作的机动车辆中使用的燃料的百分比酒精含量的方法,作为燃料组合物传感器的替代物。 本发明通过允许车辆操作不间断地继续使用燃料成分传感器的机动车辆的可靠性,例如当传感器内存在短路或打开状态时,可以提高可靠性。 该方法首先确定条件是否应使燃料的酒精含量百分比“学习”。 如果条件被占用,则首先初始化必要的发动机运行条件。 检查氧气传感器输出信号,以确定发动机是否运行太丰富或偏重。 存储在发动机控制单元的存储器中的酒精含量百分比的值在化学计量发动机操作的方向上被修改。 以这种方式,发动机能够“学习”燃料的酒精含量百分比并对操作参数进行适当的调整。

    Method of controlling the partial lock-up of a torque converter in an
electronic automatic transmission system
    8.
    发明授权
    Method of controlling the partial lock-up of a torque converter in an electronic automatic transmission system 失效
    控制电动自动变速器系统中变矩器部分锁定的方法

    公开(公告)号:US5202833A

    公开(公告)日:1993-04-13

    申请号:US691151

    申请日:1991-04-23

    申请人: Francis M. Fodale

    发明人: Francis M. Fodale

    IPC分类号: F16H61/14

    摘要: The present invention provides a method for controlling the partial frictional engagement between the torque converter and the vehicle engine called "partial lock-up" mode of operation to reduce the rotational speed difference between torque converter and the engine. The present invention eliminates surges that occur for partial lock-up which may result in a harsh shift.

    摘要翻译: 本发明提供了一种用于控制变矩器和称为“部分锁定”操作模式的车辆发动机之间的部分摩擦接合的方法,以减小变矩器和发动机之间的转速差。 本发明消除了可能导致严重变化的部分锁定发生的浪涌。

    Method of determining and controlling the lock-up of a torque converter
in an electronic automatic transmission system
    9.
    发明授权
    Method of determining and controlling the lock-up of a torque converter in an electronic automatic transmission system 失效
    确定和控制电子自动变速器系统中变矩器锁定的方法

    公开(公告)号:US4993527A

    公开(公告)日:1991-02-19

    申请号:US470439

    申请日:1990-01-23

    IPC分类号: F16H61/14

    摘要: A method of determining and controlling a lock-up of a torque converter in a four-speed automatic transmission for full or partial frictional coupling between the torque converter and the vehicle engine. The method includes the steps of checking conditions that preclude partial lock-up operation and unlocking the torque converter if partial frictional coupling is precluded. The method also includes setting initial conditions for going from unlock to partial frictional coupling and checking for conditions that allow full frictional coupling operation. The method further includes fully frictional coupling the torque converter if conditions allow full frictional coupling operation, otherwise, partially frictionally coupling the torque converter.

    摘要翻译: 一种用于确定和控制用于变矩器和车辆发动机之间的全部或部分摩擦联接的四速自动变速器中的变矩器的锁定的方法。 该方法包括以下步骤:检查部分锁定操作的条件和如果部分摩擦联接被排除则解锁变矩器。 该方法还包括设置从解锁到部分摩擦联接的初始条件,并检查允许完全摩擦耦合操作的条件。 该方法还包括如果条件允许完全摩擦耦合操作,则将液力变矩器完全摩擦耦合,否则将部分摩擦地联接变矩器。