Patent ID: 8800368

Claim:
A speed measure system of a vehicle, comprising: a drive shaft that rotates according to movement of a vehicle and a drive gear is formed along the outside thereof; a driven shaft to which a driven gear is formed, wherein the driven gear is engaged with the drive gear; a speed sensor that is disposed on the driven shaft and outputs a rotation signal according to the rotation of the driven shaft; and a jumper connector that is disposed on the speed sensor and transforms the frequency of the rotation signal output from the speed sensor with a predetermined ratio; wherein the jumper connector includes a plurality of terminals that are formed corresponding to the predetermined ratio, and a jumper that is disposed on one of the terminals to adjust the predetermined ratios; and wherein a pulse frequency that is outputted from the speed sensor is differently changed according to a terminal that the jumper combines in such a way that the predetermined ratio is changed in accordance with the pulse frequency.