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    • 64. 发明授权
    • Control device for automatic transmission of vehicle
    • 车辆自动变速器控制装置
    • US08515631B2
    • 2013-08-20
    • US12797390
    • 2010-06-09
    • Ryuji MurataHiroyuki TakeoKazuma Sasahara
    • Ryuji MurataHiroyuki TakeoKazuma Sasahara
    • F16H61/02
    • F16H61/0213F16H59/66F16H2059/663F16H2061/0225F16H2061/0232
    • A driving force margin of a vehicle is calculated on the basis of an engine load, vehicle speed, travel resistance and estimated uphill gradient. A gear is determined on the basis of predetermined gear shifting characteristics at least from the vehicle speed and the engine load in an automatic shift mode. Automatic down shift is generated in the case where the vehicle speed becomes lower than vehicle speed on an automatic down shift vehicle speed table set up in accordance with the gear when the operation is switched from the automatic shift mode to a manual shift mode. The automatic down shift vehicle speed table is corrected so as to shift an automatic down shift line to a high vehicle speed side or low vehicle speed side in accordance with the magnitude of the calculated driving force margin of the vehicle.
    • 基于发动机负荷,车速,行驶阻力和估计的上坡坡度来计算车辆的驱动力裕度。 在自动换档模式下,至少根据车速和发动机负荷,基于预定的换档特性确定档位。 在从自动变速模式切换到手动变速模式时,在根据变速档设定的自动换档车速表上,车速低于车速的情况下,产生自动换档。 根据计算出的车辆的驱动力余量的大小,校正自动换档车速表,以将自动换档线路移动到高车速侧或低车速侧。