Cam target wheel for vehicle

Abstract

A cam target wheel for a vehicle may include a camshaft; and a lobe, formed on an outer circumferential surface of the camshaft, for recognizing a ridge and valley of a cam vibration waveform.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2011-0099106 filed with the Korean Intellectual Property Office on Sep. 29, 2011, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to a cam target wheel for a vehicle, and more particularly, to a cam target wheel capable of recognizing vibration of a cam shaft to improve operability of the cam shaft. Background technique [0004] Generally, engines employing continuously variable valve timing (CVVT) have a cam target wheel used to identify cam phase. [0005] Such as figure 1 As shown, the prior art cam target wheel 101 for a vehicle includes a camshaft 110 and a protrusion 120 protruding from an outer circumferential surface of the camshaft 110 at a desired angle θ'. In this case, the angle θ' of the protrusion 120 is 180 degrees. [0006] A conventional ca...

AI Technical Summary

Problems solved by technology

However, since the semicircular cam target wheel 101 in the related art recognizes the phase of the camshaft 110 at equal intervals of 360° on a crank basis, there is a problem that it cannot recognize the cam vibration

However, if a plurality of protrusions 120 are provided, significant changes such as changes in logic development or changes in factory production lines are required, thereby raising manufacturing costs.

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