The invention relates to a direct current motor ripple detection method of an automobile memory electric seat. The direct current motor ripple detection method comprises the following steps of firstly, performing sampling, amplifying and analog to digital conversion on the currents of starting, running and braking phases of a brush direct current motor, so as to obtain digitalized motor current waveforms of the starting, running and braking phases of the brush direct current motor; analyzing, identifying and counting the cycle features of the current ripple by a software algorithm, so as to control the position of the motor. The direct current motor ripple detection method has the advantages that the seat memory function is realized through identifying the number of the current fluctuation generated by the rotation of the brush direct current motor; when a driver drives the automobile next time, only a corresponding memory press key is pressed, the brushless direct current motor is controlled to run and drive an executing mechanism, and the seat is automatically adjusted to the corresponding memory position; the additional arrangement of a wire bundle and a sensor is not needed, the cost is reduced, the complexity and fault rate in the application are decreased, the time of the different drivers manually adjusting the seat is saved, and the sitting comfortability of the automobile is improved.
Direct current motor ripple detection method of automobile memory electric seat
2015-04-29
Patent
Elektronische Ressource
Englisch
IPC: | B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet |
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