Motor controller and method for controlling motor
A control device and motor technology, which can be used in excitation or armature current control, program control, power control mechanism, etc., to solve problems such as doors and windows that cannot be fully closed or fully opened
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no. 2 approach
[0063] In the second embodiment, although a constant voltage is applied to the motor 7, when the motor 7 is locked and the speed of the window glass 3 decreases, the amount of current flowing through the motor circuit 9 changes. The CPU 10 monitors the current change amount ΔI by using the shunt resistor 41 to determine whether the torque of the motor 7 is insufficient, so as to implement full-close and full-open control.
[0064] According to the second embodiment, in addition to the same advantages as those of the first embodiment (3) to (5), the following advantages can be obtained.
[0065] (7) By monitoring the current variation ΔI of the motor circuit 9 , full-close and full-open control can also be performed.
[0066] The above-mentioned embodiment can also be modified as follows.
[0067] In the first and second embodiments, the full-close / full-open control is not limited to control that gradually increases the duty ratio every time the pulse length Lpls1 (Lpls2) of t...
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