Extraction Methods and Implementation Technologies of Fuel Injection Pump Cam Profile Characteristics

Because the traditional camshaft measurement methods cannot be applied to injection pump cam, in order improve automation of camshaft, an accurate extraction method characteristic parameters cam profile is proposed this paper. In method, phase error optimization realized by angle precise rotation matching actual lift data. The Lagrangian polynomial interpolation algorithm based on moving window. goals peach point single high and acquisition back dead arc segment are realized. Compared with precision high-precision measuring equipment, can extract accurately stably.