About 104 results
https://drivepatents.com/patents/985436 · 27 Mar 2013
Provided are a NOx sensor diagnosis apparatus capable of diagnosing the appropriateness of a NOx sensor by considering environmental conditions and preventing misdiagnosis, and an SCR system. A NOx sensor diagnose apparatus, which diagnoses a NOx sensor 11...
https://drivepatents.com/patents/992370 · 20 Mar 2013
A vehicle control apparatus (100) is mounted on a vehicle (1) provided with: an engine (10) which can use a first fuel and a second fuel in which emission is lower than that of the first fuel; a fuel changing device (21, 23, 31) capable of changing between...
https://drivepatents.com/patents/985496 · 20 Mar 2013
A system including a channel; a particulate matter sensor disposed in fluid communication with the channel, the particulate matter sensor having a sensitivity that increases in response to exposure to particulate matter; and a controller coupled to the par...
https://drivepatents.com/patents/986081 · 20 Feb 2013
Deterioration of engine fuel economy is prevented by suppressing increase in engine back pressure caused by attachment of an exhaust sensor. An exhaust sensor (10) for measuring exhaust gas components includes a cylindrical sensor body (11) arranged outsid...
https://drivepatents.com/patents/993404 · 30 Jan 2013
The present invention is intended to detect a failure of a PM filter with a higher degree of accuracy. The present invention is provided with: a PM trapping efficiency calculation part to calculate a PM trapping efficiency (which is a proportion of an amou...
https://drivepatents.com/patents/994398 · 2 Jan 2013
A method of detecting particulate matter on a particulate matter sensor includes the steps of measuring an electrical characteristic associated with the sensor, determining a value corresponding to the impedance across the sensor, and compensating the impe...
https://drivepatents.com/patents/998833 · 29 Aug 2012
A method of monitoring functional capability of a soot sensor (10) that is responsive to deposition of soot (18) from an exhaust gas stream on a sensor surface (14) comprises acquiring a measurement signal (61) of the soot sensor and running a plausibility...
https://drivepatents.com/patents/1000416 · 18 Jul 2012
[Problem to be Solved by the Invention] To suppress discharge of NOx into the atmosphere, when an abnormality occurs in an engine or an SCR device. [Means for Solving the Problem] An engine C/U 51 detects an abnormality which has occurred in an engine, and...
https://drivepatents.com/patents/1001606 · 6 Jun 2012
A method for predicting sulfur oxides (SOx) stored at a denitrification (DeNOx) catalyst may include calculations of the mass flow of SOx poisoned at the DeNOx catalyst (S360), the mass flow of SOx released from the DeNOx catalys (S370), and the SOx amount...
https://drivepatents.com/patents/1003085 · 25 Apr 2012
Providing a PM emission amount estimation device for the diesel engine wherein the accuracy of the correction in correcting the basic level of the PM emission amount by use of the PM emission amount estimation map can be enhanced; and, the PM emission amou...