Adjustment of driver demand for atmospheric conditions
    7.
    发明授权
    Adjustment of driver demand for atmospheric conditions 失效
    调整驾驶员对大气条件的需求

    公开(公告)号:US06367447B1

    公开(公告)日:2002-04-09

    申请号:US09789881

    申请日:2001-02-21

    IPC分类号: F02D4100

    摘要: A system and method for controlling a multi-cylinder internal combustion engine include determining a currently available maximum torque, determining a driver demanded torque based on a current accelerator pedal position and reference ambient conditions, and controlling the engine to deliver the lesser of the driver demanded torque corresponding to the reference ambient conditions and a calibratable percentage of the currently available maximum torque corresponding to the current ambient conditions. A similar torque is provided at high altitudes as that provided at sea level for a given low pedal position while smoothly blending into the currently available peak torque.

    摘要翻译: 用于控制多缸内燃机的系统和方法包括确定当前可用的最大扭矩,基于当前加速器踏板位置和参考环境条件确定驾驶员所需扭矩,并且控制发动机以递送所要求的驾驶员中较小的驾驶员 对应于参考环境条件的扭矩和对应于当前环境条件的当前可用最大扭矩的可校准百分比。 在高海拔处提供类似的扭矩,如在海平面上为给定的低踏板位置提供的扭矩,同时平稳地混合到当前可用的峰值扭矩中。

    Vehicle speed control system and method
    8.
    发明授权
    Vehicle speed control system and method 有权
    车速控制系统及方法

    公开(公告)号:US06178371B1

    公开(公告)日:2001-01-23

    申请号:US09290916

    申请日:1999-04-12

    IPC分类号: B60T832

    摘要: A speed control method for vehicles having an internal combustion engine smoothly controls engine torque to control vehicle speed. Torque is controlled via airflow in a first torque control range. Torque is controlled via a coordination of air/fuel ratio, ignition timing, and cylinder deactivation is a second torque control range. The torque range is selected based on the required airflow to deliver the required torque. If the required airflow is less than a lower allowable value, then the airflow is fixed at this lower allowable value and the second range is selected. Otherwise, the first range is selected.

    摘要翻译: 具有内燃机的车辆的速度控制方法平滑地控制发动机扭矩以控制车速。 扭矩通过第一转矩控制范围内的气流来控制。 通过协调空/燃比控制扭矩,点火正时和汽缸停用是第二个扭矩控制范围。 根据所需的气流来选择扭矩范围以提供所需的扭矩。 如果所需气流小于允许值,则气流被固定在该较低的允许值,并选择第二范围。 否则,选择第一个范围。