Method and apparatus to control an ignition system

US10788006B2 · kind B2 · utility

Assignee

• DELPHI AUTOMOTIVE SYSTEMS LUXEMBOURG SA · LU

Inventors

• Frank Lorenz · Trier, DE
• Peter Weyand · Dallas, US

Key dates

• Filing date: Nov 8, 2016
• Grant date: Sep 29, 2020
• Expiry date: Jun 2, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02P15/10
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A multi-charge ignition system including a spark plug control unit adapted to control at least two coil stages so as to successively energise and de-energise the coil stages to provide a current to a spark plug, the two stages including a first transformer including a first primary winding inductively coupled to a first secondary winding a second transformer including a second primary winding inductively coupled to a second secondary winding. A first switch is located between the high end side of the first primary winding and the high end side of the second primary winding, and a second switch is located between the low side of the first primary winding and high side of the second primary winding.