Ignition coil and method for operating

US10487792B2 · kind B2 · utility

Assignee

• BorgWarner Ludwigsburg GmbH · DE

Inventors

• Dejan Kienzle · Heilbronn, DE
• Dirk Wüstenhagen · Auma, DE

Key dates

• Filing date: Mar 5, 2018
• Grant date: Nov 26, 2019
• Expiry date: May 9, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02P2017/121
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for operating an ignition coil is described, wherein a secondary voltage pulse is generated by feeding a primary voltage pulse into a transformer of the ignition coil, and a primary current, a primary voltage, a secondary current and/or a secondary voltage are measured, wherein the course of the primary current, the primary voltage, the secondary voltage and/or the secondary current are monitored and, when a malfunction is determined during subsequent primary voltage pulse, an error signal is generated which indicates that a malfunction has occurred during the previous primary voltage pulse and classifies the malfunction. In addition, a corresponding ignition coil is described.