介绍电动自行车电机的设计特点，提出一种确定电机额定转速及功率的方法，提供电机及控制器的设计参数。
The thesis introduces design peculiarity of motor bike, and puts forth a method to define rated speed and power to provide design parameter for the motor and controller.
伺服电机有很小的启动频率，能很快从最低转速加速到额定转速。
Servo motor has small start frequency, can quickly from the lowest revolution accelerated to the rated speed.
动力参数包括：电动机功率、额定转速、电机型号等。
Power parameter include: motor power, rated speed, motor model, etc.
伺服电机有很小的启动频率，能很快从最低转速加速到额定转速。
Servo motor have small start frequency, can quickly from the lowest revolution accelerated to the rated speed.
从整车驱动角度分析提出了电动汽车电机驱动系统的理想动力特性：低于额定转速恒转矩，高于额定转速恒功率。
The ideal power characteristic for traction motor system is put forward from the vehicle driving point with constant torque drive below base speed and constant power drive above base speed.
由举升流体所需功率和螺杆泵转速预测电动机轴的负载功率，确定地面电机额定功率。
And the horsepower of surface motor is ascertained through anticipating the operating power of motor shaft according to the power of lifting liquid and rotational speed of PCP.
设置安全排气阀，在电机转速达到额定转速后，自动打开排气阀，保证起动器的安全可靠运行。
To guarantee running safety, it needs to set the safey exhausting valve, which will be opened automatically when reaching the rated speed.
主要是泵的转速太高、介质粘度又太高这样就会造成泵阻力很大，电机的瞬间启动电流超过额定电流，造成电机过载；
Mainly is the pump speed is too high, medium and high viscosity resistance is very big, this will cause pump motor moment of starting current more than rated current, motor overload;
某带行星齿轮减速器的发电机组在满负荷额定转速工况下，出现减速器轴承及发电机后轴承处横向振动偏大的故障现象。
Under the condition of rated load and rated speed operation of a generator set, over-vibration phenomena appeared in the planetary gearbox's bearing and the rear bearing of the generator.
某带行星齿轮减速器的发电机组在满负荷额定转速工况下，出现减速器轴承及发电机后轴承处横向振动偏大的故障现象。
Under the condition of rated load and rated speed operation of a generator set, over-vibration phenomena appeared in the planetary gearbox's bearing and the rear bearing of the generator.
应用推荐