Patent Number: 6,637,390

Title: Apparatus and method for measuring cam phaser locking pin position

Abstract: A vane-type cam phaser wherein a realtime method of measuring the axial position of the phaser's locking pin is provided. A magnet is fixed to the nose portion of the locking pin. A Hall-effect sensor is attached to the stator of the phaser in proximity to the magnet. As the locking pin moves through its range of travel, the magnet moves either toward or away from the sensor resulting in a proportional increase or decrease in sensor output voltage. By reading the voltage output, the axial position of the locking pin can be determined.

Inventors: Dauer; Kenneth J. (Avon, NY), Trapasso; David J. (Bloomfiled, NY)

Assignee: Delphi Technologies, Inc.

International Classification: F01L 1/344 (20060101); F01L 001/34 ()

Expiration Date: 10/28/2020