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目前挖掘机所采用的电力传动装置具有最新的操縱系統,故使其能在极大范围內改变原动机的机械特性(无論是特性曲綫的形状或者是充系数值)。大家都知道,由于改进了电力传动装置的操縱系統才減小了其靜态工作机械特性与动态工作机械特性間的差距。
The current power-train units used in excavators have the latest operating systems that allow them to vary the mechanical characteristics of the prime mover over a large range (whether they be the shape of the characteristic curve or the fill factor). As we all know, as a result of the improved control system of the electric actuator, the difference between the static working mechanical properties and the dynamic working mechanical properties is reduced.