Patent · US Active

Method for controlling a glow plug in a diesel engine

US8976505B2 · kind B2 · utility

4Cited by

2References

19Claims

0Family size

Assignee

BORGWARNER BERU SYSTEMS GMBH · DE

Inventors

Markus Kernwein · Bretten, DE
Olaf Toedter · Usingen, DE

Key dates

Filing date	May 31, 2007
Grant date	Mar 10, 2015
Priority date	—
Expiry date	Nov 25, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02P19/023
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for controlling a glow plug in a diesel engine, in particular in the preheating phase, is described. According to the invention, it is provided that the time gradient of an electrical variable which varies according to the temperature of the glow plug is measured and compared with a threshold value, and when said time gradient exceeds or drops below the threshold value, the electric supply voltage of the glow plug is changed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.