The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2016
Filed:
May. 14, 2012
Tomohiro Nakamura, Saitama, JP;
Yutaka Tanaka, Saitama, JP;
Yoshihito Fujishiro, Saitama, JP;
Bosch Corporation, Tokyo, JP;
Abstract
The accuracy in controlling the heating temperature of a glow plug and the reliability of the control operation are improved. An electronic control unitis configured such that a standard applied voltage for glow plugs-to-n is set according to the engine speed and the load conditions of the engine. In addition, a correction coefficient set in advance according to the temperature classification of the mounted glow plugs-to-n is readably stored in the electronic control unitas a correction coefficient map. By multiplying the standard applied voltage by a correction coefficient K read from the correction coefficient map and applying a voltage of the multiplication result to the glow plugs-to-n as a driving voltage through the power circuitto perform driving control, stable and reliable heating temperature control can be realized regardless of variations in the heating temperature characteristics.