Self-adaptive sensor unit for determining pulse switching points

US6445176B1 · kind B1 · utility

Assignee

• Mannesmann VDO AG · DE

Inventor

• Werner Wallrafen · Schwalbach, DE

Key dates

• Filing date: Aug 9, 2000
• Grant date: Sep 3, 2002
• Expiry date: Aug 9, 2020

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D41/0097
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A magnetically sensitive sensor for counting pulses for measuring rotational speeds and angular positions of a rotating component via a pulse transmitter connected for rotating with the rotating component automatically adapts its switching points to the respective measurement location conditions. A logic unit initiates automatic adaptation of the switching points from an original state when an operating parameter first exceeds a limit value after the supply voltage of the sensor turned on. The original state is not preset or is coarsely preset. The configuration of the switching points is then stored in a non-volatile data memory specifically for the sensor.