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. 03, 2003
Filed:
Dec. 10, 2001
Helmut Denz, Stuttgart, DE;
Martin Haussmann, Sachsenheim, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The present invention relates to an ignition control device for the control of an ignition coil device for an internal combustion engine having an engine speed detection device for detecting the engine speed of the internal combustion engine at a detection instant within the ignition cycle of a given cylinder; a determination device for determining a predetermined ignition angle corresponding to the detected engine speed, a charging time corresponding to the detected engine speed and an appropriate start-of-charging angle; an ignition control value output device to output the start-of-charging angle and the charging time in a charging time output mode and to output the start-of-charging angle and the ignition angle in an ignition output mode to the ignition coil device; a detection device for detecting critical power loss states of the ignition control device driver stage in ignition angle output mode; and an ignition control mode determination device for selecting an ignition control mode from among the ignition angle mode output and charging time output mode for the ignition cycle; the ignition control mode determination device being configured in such a way that it selects charging time output mode if a critical power loss state of the ignition coil device driver stage is detected in ignition angle output mode.