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:
Jun. 14, 2005
Filed:
Oct. 08, 2003
Olaf Toedter, Woessingen, DE;
Heinz-georg Schmitz, Marbach/Neckar, DE;
Olaf Toedter, Woessingen, DE;
Heinz-Georg Schmitz, Marbach/Neckar, DE;
Beru AG, Ludwigsburg, DE;
Abstract
A process and device for controlling the heating of the glow plugs of a diesel engine. To be able to take into consideration the thermal behavior of the glow plugs while controlling the current supply of the glow plugs () of a diesel engine, the thermal behavior of the glow plugs () is emulated via a physical model. Formed on the corresponding output signal of the model (), which is proportional to the glow plug temperature, is a reference signal, which as a control value, lies on the electronic control () controlling the heating flow of the glow plugs (), which accordingly controls the heating of the glow plugs () using the actual glow plug temperature determined from emulation.