电机：BDC参数定义

参考链接：https://www.quora.com/What-is-the-difference-between-no-load-rated-and-stall-current-torqe-or-speed#:~:text=Rated%20current%20is%20the%20maximum,running%20under%20maximum%20torque%20load).

How Do I Interpret DC Motor Specifications? -  https://www.robotshop.com/community/tutorials/show/how-do-i-interpret-dc-motor-specifications

No load current will generally be quite small, as it is the current required to simply overcome internal friction at the maximum speed of the motor.

Rated current is the maximum recommended current that should be allowed to continuously be applied to the motor - although, in some rare cases, the rated current is given for when the motor is most efficient.

Stall current is the highest current that the motor can draw (when it is running under maximum torque load). You should make sure that your motor driver is capable of handling this current if possible, otherwise you risk burning out your electronics if the motor sticks and draws the stall current.

Maximum torque is the strength of the load that the motor is capable of turning under (measured in force-distance units, i.e. foot-pound, gram-centimeter, newton-meter).

Speed will depend on what load is applied to the motor. Generally, the speed stated is the maximum speed under no load conditions - although, some manufacturers may put multiple speed measurements under varying loads for easy comparison.