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Motor control method, device, terminal equipment and storage medium
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A motor control and control signal technology, which is applied in motor control, installation of electrical equipment, cleaning equipment, etc., can solve the problem of one-way deviation affecting the accuracy of motor control, and achieve the effect of avoiding one-way deviation and improving control accuracy
Active Publication Date: 2022-06-03
SHEN ZHEN 3IROBOTICS CO LTD
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Problems solved by technology
[0004] The embodiment of the present application provides a motor control method, device, terminal equipment and storage medium, which can solve the problem that one-way deviation affects the accuracy of motor control
Method used
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Embodiment 1
[0081] The precision value of the PWM control signal is 1%, the duty cycle of the PWM control signal input at the current time is 35%, the duty cycle of the acquired preprocessing signal is 35.3%, and the compensation factor is 0.5. Since the precision value of the PWM control signal is 1%, the duty cycle set can be obtained as {0, 1%, 2%, 3%, ..., 100%}, and the preset pointing value set is {0, 1, 2, 3, ..., 100}.
[0082] The compensation value m is:
[0083]
[0084] Then the target pointing value M=35, the M+1th pointing value in the pointing value set is 36, and the duty cycle associated with 36 in the duty cycle set is 35%, then the target duty cycle is 35%, which is the same as the input PWM The duty cycle of the control signal is the same.
[0085] If the ordinary control method is used, the motor will be controlled by the PWM control signal with a duty cycle of 35.3%. After using this method, the duty cycle of the control motor operating signal is the duty cycle ...
Embodiment 2
[0087] The precision value of the PWM control signal is 2%, the duty cycle of the PWM control signal input at the current time is 36%, the duty cycle of the acquired preprocessing signal is 36.3%, and the compensation factor is 0.5. Since the precision value of the PWM control signal is 2%, the duty cycle set can be obtained as {0, 2%, 4%, 6%, ..., 100%}, and the preset pointing value set is {0, 1, 2, 3, ..., 50}.
[0088] The compensation value m is:
[0089]
[0090] Then the target pointing value M=18, the M+1th pointing value in the pointing value set is 19, and the duty cycle associated with 19 in the duty cycle set is 36%, then the target duty cycle is 36%, which is the same as the input PWM The duty cycle of the control signal is the same.
[0091] If the ordinary control method is used, the motor will be controlled by the PWM control signal with a duty cycle of 36.3%. After using this method, the duty cycle of the control motor operating signal is the duty cycle o...
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Abstract
This application is applicable to the technical field of motor control, and provides a motor control method, device, terminal equipment, and storage medium. The above motor control method obtains a pulse signal with a set number of cycles in the PWM control signal as a preprocessing signal, and Calculate the duty cycle of the preprocessing signal, then determine the target pointing value according to the duty cycle of the preprocessing signal and the precision value of the PWM control signal, and finally obtain the corresponding target duty cycle in the duty cycle set according to the target pointing value, and The motor is controlled based on the target duty cycle. The target duty ratio finally obtained by the above method is a duty ratio in the PWM control signal, which avoids the problem of unidirectional deviation of the obtained duty ratio, thereby improving the control accuracy of the motor.
Description
technical field [0001] The present application belongs to the technical field of motor control, and in particular, relates to a motor control method, device, terminal device and storage medium. Background technique [0002] The current motor control principle of sweepers and vacuum cleaners is as follows: periodically obtain a pulse signal with a set period in the input PWM (Pulse Width Modulation) control signal, and calculate the duty cycle of the pulse signal, and then according to the pulse The duty cycle of the signal controls the motor operation. Usually, the precision value of the PWM control signal used to control the work of the motor is 1% or greater, that is, when the precision value of the PWM control signal is 1%, the duty cycle of the PWM control signal can be 0, 1%, 2%, 3%, ..., 100%; when the precision value of the PWM control signal is 2%, the duty cycle of the PWM control signal can be 0, 2%, 4%, 6%, ..., 100%. [0003] However, there is a one-way deviati...
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Application Information
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