Fehlzündungsbestimmungsvorrichtung für Viertaktmotor mit mehreren Zylindern

Details

Veröffentlichungs-Nr.

EP2410311

Aktenzeichen

EP11170627

Anmeldetag

20. Juni 2011

Veröffentlichung

17. April 2019

Erteilung

17. April 2019

Rechtsraum

EP

IPC

G01M15/11

Abstract

A misfire determination device for a multi-cylinder four-cycle engine (11), which determines a misfire based on a pulse (P) outputted each time when a crankshaft (15) rotates by a predetermined rotational angle, includes a timing device (30) for timing an elapsed time (T) until a number of pulses in a stroke (TN) are counted at each pulse output timing, a deviation calculating device (30) for calculating a deviation (DT) between a first time (TR) and a second time (TL), an integrated value calculating device (30) for calculating an integrated value (RC) by integrating the calculated deviation by the predetermined rotational angle of the crankshaft, and a determining device (30) for determining whether or not the misfire occurs at any one of the plurality of the cylinders (12) based on a magnitude relationship between the integrated value and a predetermined threshold value (DR).

Anmelder

Firma

AISIN SEIKI KABUSHIKI KAISHA

Land

🇯🇵 Japan

Fachgebiete