GLOW PLUG DRIVE CONTROL METHOD AND GLOW PLUG DRIVE CONTROL DEVICE

Title:

GLOW PLUG DRIVE CONTROL METHOD AND GLOW PLUG DRIVE CONTROL DEVICE

Document Type and Number:

WIPO Patent Application WO/2012/157595

Kind Code:

A1

Abstract:

The accuracy of generated heat temperature control of a glow plug can be improved and the reliability of a control operation can be improved. An electronic control unit (101) is configured so that a standard applied voltage applied to glow plugs (50-1 to 50-n) is set according to the number of engine rotations and an engine load condition. In addition, correction coefficients preset according to the temperature category of the mounted glow plugs (50-1 to 50-n) are stored in a readable manner as a correction coefficient map. A drive control is performed in such a way that the correction coefficients (K) read from the correction coefficient map are multiplied to the standard applied voltage and the voltages obtained by the multiplication results are applied, as drive voltages, to the glow plugs (50-1 to 50-n) through a driver circuit (102). This makes it possible to achieve a stable and reliable generated heat temperature control regardless of generated heat temperature characteristic variations.

Inventors:

NAKAMURA TOMOHIRO (JP)
TANAKA YUTAKA (JP)
HUJISHIRO YOSHITO (JP)

Application Number:

PCT/JP2012/062253

Publication Date:

November 22, 2012

Filing Date:

May 14, 2012

Export Citation:

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Assignee:

BOSCH CORP (JP)
NAKAMURA TOMOHIRO (JP)
TANAKA YUTAKA (JP)
HUJISHIRO YOSHITO (JP)

International Classes:

F02P19/02

Domestic Patent References:

WO2011049132A1

2011-04-28

Foreign References:

JP2010175116A	2010-08-12
JP2010281315A	2010-12-16
JP2010043603A	2010-02-25
JP2008221735A	2008-09-25
JP2010065661A	2010-03-25
DE102009046438A1	2011-05-12
JP2008157614A	2008-07-10

Other References: