该系统由EPS电机直接提供转向助力，省去了液压动力转向系统所必需的动力转向油泵、软管、液压油、传送带和装于发动机上的皮带轮，既节省能量，又保护了环境。
The system directly provides steering assistance by EPS motor, and eliminates the necessary power steering oil pump, hose, hydraulic oil, conveyor belt and belt pulley installed on the engine, which saves energy and protects the environment.
同时，由于电控技术的进步，EPS可以实现不同车速下的不同助力效果，低速时方向盘轻盈，高速时方向沉重，确保驾驶安全，且为自动驾驶提供了一定的技术支撑。
At the same time, due to the progress of electronic control technology, EPS can achieve different power assist effects at different speeds. At low speeds, the steering wheel is light and heavy when driving at high speed, so as to ensure driving safety and provide certain technical support for automatic driving.
另外，电动助力系统还具有调整简单、装配灵活以及在多种状况下都能提供转向助力的特点。正是有了这些优点，
In addition, the electric power system also has the characteristics of simple adjustment, flexible assembly and the ability to provide steering power in a variety of conditions. It is these advantages,
电动助力转向系统作为一种新的转向技术，将逐渐全面取代大家都非常熟知的、已具有50多年历史的液压转向系统。
The electric power steering system, as a new steering technology, will gradually replace the well known hydraulic steering system with a history of over 50 years.
早期的EPS电机大多采用有刷电机，随着技术的进步，越来越多的厂家选用技术更为先进可靠地无刷电机。
The early EPS motor mostly used brush motor. With the progress of technology, more and more manufacturers choose technology more advanced and reliable brushless motor.
但是无刷电机在定子制作上存在较大的难度，为保证定子的内径圆度，同时提升绕线的槽满率，
But the brushless motor has a great difficulty in making the stator, in order to ensure the inner diameter of the stator and to increase the full rate of the winding.
分块式定子铁芯成了几乎所有无刷EPS电机厂家的必选工艺。以下简单介绍一下EPS无刷电机的定子制作工艺。
Block type stator core into required process almost all brushless EPS motor manufacturers. The following flow is a brief introduction to the manufacturing process of the stator of EPS brushless motor.
通过分块式工艺制造的电机定子具有极好的一致性和产品精度，目前实际的批量生产应用中可以将内圆圆度控制到0.03mm以下。
The stator of the motor manufactured by block technology has excellent consistency and product accuracy. At present, the actual roundness in the mass production can be controlled below 0.03mm.
同时，因为采用直接绕线的方式，电机的各绕组的电阻及电感平衡率都被控制到极好的水平。
At the same time, because of the direct winding, the resistance and inductance balance of all the windings of the motor are controlled to an excellent level.
定子的高品质决定了EPS电机在响应时间、以及齿槽转矩以及转矩脉动上面都有优良的表现。
The high quality of the stator determines the good performance of the EPS motor on the response time, the cogging torque and the torque ripple.
拼块定子工艺必将成为未来高精度电机生产的主流工艺方法。
The block stator process will surely become the mainstream technology in the production of high precision motor in the future.
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Emily