SEM AKTIEBOLAG Patent applications |
Patent application number | Title | Published |
20120291524 | DEVICE AND METHOD FOR ANALYSING A PERFORMANCE OF AN ENGINE - The present invention relates to a device for analysing a cylinder wise performance of an internal combustion engine, comprising ion current measurement means that are arranged to measure an ion current in a engine and that are also arranged to produce a first signal corresponding to a measurement performed by said ion current measurement means, and also comprising an amplifier that is connected to said ion current measurement means and that is arranged to receive and amplify said first signal in order to produce an amplified signal, and further also comprising first analysing means for analysing said amplified signal for detecting an indication of a knock event in the engine, wherein said amplifier is a variable-gain amplifier and that said device further comprises second analysis means that is arranged to receive and analyse said amplified signal and to adjust a gain of said amplifier. The invention also relates to a method for analysing a performance of a engine. | 11-22-2012 |
20120255530 | IGNITION SYSTEM CONTROL METHOD AND SYSTEM - The present invention relates to a method for monitoring an ignition system, wherein the ignition system comprises a charge coil (L | 10-11-2012 |
20110006693 | SYSTEM FOR ENERGY SUPPORT IN A CDI SYSTEM - This invention relates to a method and system for generating energy/power in a capacitive discharge ignition system, said system comprising at least one charge winding (L) which by means of a fly wheel and via a first rectifier device (D | 01-13-2011 |