Fehlerdetektor und Fehlerdetektionsverfahren

Details

Veröffentlichungs-Nr.

EP3845871

Aktenzeichen

EP20215885

Anmeldetag

21. Dezember 2020

Veröffentlichung

7. Juli 2021

Rechtsraum

EP

IPC

G01F25/00G01P21/00F01N11/00// G01F23/296

Abstract

A failure detector includes a reducing agent tank (65) in which reducing agent solution (67) is stored, a liquid level sensor configured to detect a liquid level of the reducing agent solution (67), a behavior variation detector configured to detect behavior variations of a vehicle, and a controller (50) configured to perform control for causing the behavior variation detector to detect the behavior variations of the vehicle for a first specified time and the liquid level sensor to detect variations in the liquid level of the reducing agent solution (67) for a second specified time. The controller (50) has a failure detection unit that detects a presence of a failure of each of the behavior variation detector and the liquid level sensor based on the behavior variations and the variations in the liquid level of the reducing agent solution (67).

Anmelder

Firma

Kabushiki Kaisha Toyota Jidoshokki

Land

🇯🇵 Japan

Fachgebiete