Electronic parking direct-current motor angle control method based on state feedback
A DC motor, state feedback technology, applied in the direction of DC motor speed/torque control, control system, control of mechanical energy, etc., can solve the problems of soft mechanical characteristics, inaccurate control, large mechanical impact, etc. The effect of smooth adjustment process and strong load capacity
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[0017] like figure 1 As shown, it is the key part of the parking mechanism. The rotating shaft is driven by a DC motor, and the pawl can be pressed into the tooth slot of the gearbox gear to lock the gearbox to realize parking. When unlocking is required, the DC motor drives the rotating shaft to reverse to release the pawl. Therefore, controlling the rotation angle of the DC motor accurately and quickly is the key to ensure the working performance of the mechanism.
[0018] like figure 2 As shown, it is the equivalent circuit of a DC motor, which includes the armature resistance R that is connected in series to form a loop a , armature inductance L a , counter electromotive force E a , the armature voltage U a and armature current I a .
[0019] The torque balance equation of the motor is Among them: T e is the electromagnetic torque, T L is load torque, ω is angular velocity, t is time, C T is the torque constant, Φ is the main magnetic flux of each pole, J is t...
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