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:
Sep. 28, 1982
Filed:
Mar. 18, 1981
Volkswagenwerk Aktiengesellschaft, Wolfsburg, DE;
Abstract
A method and device for adjusting the timing of an internal combustion engine in response to knocking are provided. In the method, knocking signals are generated when the engine knocks and the timing is too far advanced. First correctional signals are generated in response to the knocking signals and adjust at one speed range one of several control curves. Second correctional signals are generated from the first correctional signals to adjust the control curves at the remaining speed ranges. The timing of the engine is retarded in response to the adjusted control curves until the knocking disappears. The system for adjusting the ignition timing comprises a knocking sensor, an ignition computer storing several control curves and generating ignition timing correction signals, a counter for generating signals to the ignition computer to change the control curves, a logic unit for receiving signals from the ignition computer and the knocking sensor and generating correction signals, and an interconnection device for adjusting the timing of the internal combustion engine in response to the ignition correction signals.