Because the most torque an electric motor has is at zero speed.
因为电动马达的最大力矩处于零速度。
Direct control of torque over the motor speed range is provided by the drive, which helps the motor and drive generate torque levels high enough to cycle the press back to ready position.
直接控制扭矩而不是电机转速范围,可以使得电机和变频器产生足够高的扭矩使得压机可以回复到原来的位置。
The Tesla's rapid acceleration comes from the ability of an electric motor to deliver its maximum amount of torque at whatever speed the motor is turning.
Tesla的强劲加速力来自一款无论在何种转速下都能释放最大扭矩的电动引擎。
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