About 60 results
https://drivepatents.com/patents/985710 · 13 Mar 2013
It is an object of the present invention to easily executing a careful work which is executed on the basis of an engine sound. An exhaust gas purification system of a working machine according to the present invention is provided with an engine 70 which is...
https://drivepatents.com/patents/993668 · 23 Jan 2013
An exhaust device of an internal combustion engine includes a burner device (40) including a fuel addition device (15) for adding fuel to an exhaust passage (12) of the internal combustion engine (1), and igniting the added fuel, and a controller (50) whic...
https://drivepatents.com/patents/993867 · 16 Jan 2013
The present invention provides a DPF failure detection method and a DPF failure detection device, which can be realized with a simple configuration and detect a failure at low cost. The theoretical deposited amount of PM on a DPF 4 is calculated from the o...
Method for updating a function for calculating the exhaust pressure of an internal combustion engine
https://drivepatents.com/patents/996759 · 24 Oct 2012
A method of updating a pressure law (P-LAW) providing the exhaust pressure (P) as a function of the exhaust gas flow rate (Q); the following steps are included: measuring a first current intensity (Ip) of a UEGO sensor (13), under conditions of pure air an...
https://drivepatents.com/patents/1003655 · 4 Apr 2012
A particulate filter ash loading prediction method, including the steps of: determining a service age for the particulate filter (20); calculating an ash accumulation rate in the particulate filter (20); determining a maximum service age for the particulat...
https://drivepatents.com/patents/1003630 · 4 Apr 2012
A particulate filter ash loading prediction method, including the steps of: regenerating the particulate filter (20) using a first soot loading prediction model or a second soot loading prediction model; determining whether the regeneration of the particul...
https://drivepatents.com/patents/1003618 · 4 Apr 2012
A filter (6) collecting particulate matter in exhaust gas is provided in an exhaust path of an engine. A proximal thermosensor (2) and an entire-area thermosensor (3) are provided downstream of the filter (6). A position of the proximal thermosensor (2) is...
https://drivepatents.com/patents/1004755 · 29 Feb 2012
The method involves comparing a difference between a difference pressure value (deltap) and a correction value (deltapoffset) with a tolerance threshold value, and detecting the difference pressure value as false when the difference is larger than the thre...
https://drivepatents.com/patents/1005924 · 25 Jan 2012
Provided is an exhaust purification device for an internal combustion engine, wherein the operation of an internal combustion engine can be prevented from being maintained when a particulate filter is melted. An exhaust purification device (1) for an inter...
https://drivepatents.com/patents/1006743 · 28 Dec 2011
A detection device for an internal combustion engine is preferably applied to the internal combustion engine which includes a temperature varying member, which is provided in an exhaust system, and whose temperature varies due to gas flow in the exhaust sy...