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    • 9. 发明授权
    • Automatic power transmission control system
    • 自动功率变送控制系统
    • US3776048A
    • 1973-12-04
    • US3776048D
    • 1971-09-03
    • NISSAN MOTOR
    • ENOMOTO KAKAISHI TISHIMARU W
    • F16H59/22F16H59/24F16H61/02F16H61/10F16H61/21F16H63/02B60K21/02
    • F16H61/21B60K2704/04F16H59/22F16H61/0206Y10T477/691Y10T477/693762
    • An automatic power transmission control system for a vehicle driven by an engine having a carburetor throttle valve which control system comprises a shift control unit to cause shifting of different gear reduction ratios in accordance with a signal representative of an effective opening area of the throttle valve and a signal representative of a vehicle speed, and a shift pattern generator circuit associated with the shift control unit and responsive to a signal representing a closed condition of the throttle valve for modifying the shift pattern whereby a downshift is effected from a lower gear reduction ratio to a higher gear reduction ratio regardless of the vehicle speed to provide sufficient engine braking action when the closed condition of the throttle valve is sensed.
    • 一种用于由具有化油器节流阀的发动机驱动的车辆的自动变速器控制系统,该控制系统包括变速控制单元,以根据代表节流阀的有效开口面积的信号使不同齿轮减速比移位;以及 代表车速的信号,以及与变速控制单元相关联的换档模式发生器电路,并且响应于表示节气门的关闭状态的信号,用于修改换档模式,从而从低档减速比到 当感测到节气门的关闭状态时,与车速无关地提供更高的齿轮减速比,以提供足够的发动机制动作用。