They didn’t improve the clock speed, presumably to keep manufacturing design costs low and to keep battery performance at parity with the first model.
他们并没有提升处理器频率，应该是为了保持硬件设计低成本和与一代相同的电力表现。
The application cases showed that the method has advantages of low dependence on initial model, rapid convergent speed and stable inverted results.
文中的应用实例说明了该方法具有对初始模型依赖性低、收敛速度快、反演结果稳定的优点。
Position and speed are obtained by an observer using a voltage and an inductance motor model together with test signal injection at low speed.
采用含电机电压模型和电机电感模型的观测器，在低速时注入测试信号，可以得到位置和速度信号。
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