English to Italian Tech/Engineering Engineering (general)

An electric machine rotation angle measurement device is provided according to an aspect of the concept for the present disclosure, which includes: a signal conditioning circuit, configured to receive three-phase output voltages UA, UB and UC of the electric machine, and generate a first square wave signal corresponding to UA-UB, a second square wave signal corresponding to UB-UC, and a third square wave signal corresponding to UC-UA respectively; and a processor, configured to generate a six-fold frequency pulse whenever a jump of any square wave signal among the first square wave signal, the second square wave signal, and the third square wave signal is detected during a rotational period of the electric machine, generate compensating pulses between the current six-fold frequency pulse and the next six-fold frequency pulse based on the time interval between the current six-fold frequency pulse and the previous six-fold frequency pulse and the preset compensating subdivision coefficient k, and cumulate the number of the compensating pulses, where the number of the compensating pulses is related to the rotation angle of the electric machine.


Riferimento all'intero brevetto su https://patentimages.storage.googleapis.com/1d/c4/5f/a31ebd4...