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:
Dec. 28, 1999
Filed:
Feb. 06, 1998
Vogt electronic AG, Obernzell, DE;
Abstract
The present invention provides a device and a method for cylinder sensing in an internal combustion engine. The device according to the invention has a crankshaft sensor device for detecting a crank angle and a predetermined crankshaft position, and outputting corresponding crankshaft signals; an ignition device for igniting the respective cylinder of the internal combustion engine by generating corresponding high-voltage pulses for corresponding control signals, and a control device for receiving the crankshaft signals and outputting the control signals to the ignition device as a function of at least the crankshaft signals, with the control device being so designed that in a cylinder sensing phase, while receiving a crankshaft signal corresponding to a predetermined crankshaft position, it outputs a control signal to generate a high-voltage pulse with a predetermined amplitude that can be reached in at least one specific cylinder; an ignition detection device for determining whether and/or at what ignition voltage the specific cylinder was ignited by the high-voltage pulse and outputting a corresponding ignition detection signal; and a cylinder sensing device for determining whether the specific cylinder is in the predetermined crankshaft position in its power stroke, based on at least the ignition acquisition signal.