Servomotor with position feedback

摘要

A vehicle road speed control system has a differential pressure actuated servomotor as a part of a power unit including an integral solenoid controlled valve assembly. The servomotor and valve assembly includes a servomotor output position feedback path. The solenoid valve assembly is of the repulsion armature type with the load spring coupled to the servomotor power wall to introduce position feedback. Two modifications of the valve orifice control arrangement are disclosed.