Pump switching control systems and methods for continuously variable transmissions

A target module determines a target ratio between a speed of an input shaft and a speed of an output shaft of a continuously variable transmission (CVT) based on an accelerator pedal position. A maximum rate of change (ROC) module determines a maximum ROC of the target ratio. A switching valve control module, based on a comparison of the maximum ROC and a ROC of the target ratio, selectively actuates a switching valve of the CVT one of (i) from a closed position to an open position and (ii) from the open position to the closed position. The switching valve prevents transmission fluid flow through a flow path between a transmission fluid pump and a pressure regulator valve of the CVT when the switching valve is in the closed position. The switching valve allows transmission fluid flow through the flow path when the switching valve is in the open position. 目标模块基于加速器踏板位置确定无级变速器(CVT)的输入轴的速度与输出轴的速度之间的目标比。最大变化率(ROC)模块确定目标比的最大ROC。基于最大ROC和目标比的ROC的比较，切换阀控制模块选择性地将CVT的切换阀(i)从关闭位置致动到打开位置，以及(ii)从打开位置致动到关闭位置。当切换阀处于关闭位置时，切换