The engine starting system provides air, fuel, ignition and torque for rotating the engine to an rpm at which the engine can accelerate to idle rpm.

发动机起动系统提供引气、燃油、点火及扭矩，以使发动机转动并加速到慢车所需的转速。

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Under the same torque, the idle Angle is less when driving part is the race than the star wheel, and also the bigger the clutch size, the less the idle Angle.

在工况条件相同时，选套筒为主动件时的空转角比选星轮为主动件时的空转角小；传递相同转矩时，尺寸大的离合器空转角小。

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A control model based on torque was developed, including signal processing model, torque model, idle model, throttle model, airflow model, start control model and so on.

开发了基于扭矩的控制模型，包括传感器信号处理模型、扭矩模型、怠速模型、节气门模型、空气系统模型、起动控制模型等。

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