Electric vehicle motor rotational speed value generating device

An electric vehicle motor rotational speed value generating device comprising:

• a first counter, the first counter receiving a system frequency and an input frequency, and the first counter counting the input frequency according to the system frequency and outputting a first bit numerical value;
• a second counter, the second counter being electrically connected to the first counter and receiving the first bit numerical value, and the second counter counting the first bit numerical value with an exponent n in a 2n exponential function that approximating a maximum rotational speed command value and outputting a second bit numerical value;
• a frequency divider, the frequency divider being electrically connected to the second counter and receiving the second bit numerical value, and the frequency divider dividing the second bit numerical value from the system frequency and outputting a counting frequency;
• and
• a third counter, the third counter being electrically connected to the frequency divider and receiving the counting frequency, the third counter being electrically connected to a maximum frequency generator and receiving a maximum frequency generated by the maximum frequency generator, and the third counter counting the maximum frequency from the counting frequency and outputting a feedback rotational speed value.