About 60 results
https://drivepatents.com/patents/1114568 · 28 May 2026
Systems and methods for diagnosing at least one component in an exhaust aftertreatment system are provided. Operations to diagnose at least one component include causing an engine to operate through a sequence of a plurality of engine outputs; receiving, f...
https://drivepatents.com/patents/1397506 · 24 Dec 2025
Systems and methods for using a diesel particulate filter (DPF) heater as a load bank to maintain a minimum exhaust temperature for a diesel oxidation catalyst (DOC) paired with a prime mover are provided. The system includes a prime mover coupled with a g...
https://drivepatents.com/patents/1386280 · 26 Nov 2025
A method to control combustion inside the combustion chamber (22) of a burner (21) of an exhaust gas after-treatment system (14) is described. The method provides for placing a first pressure sensor (33, 34) along a first duct (25, 35) of the exhaust gas a...
https://drivepatents.com/patents/1394425 · 30 Jul 2025
Methods and systems using model based and iterative calculations of mass flow throughout an internal combustion engine system. A secondary air injection valve is provided to selectively allow intake air to pass to the exhaust side of the engine system to a...
https://drivepatents.com/patents/938076 · 7 Sep 2016
A turbocharger-equipped internal combustion engine includes an exhaust turbine (27), an exhaust filter (84), a differential pressure detector (92), an atmospheric pressure sensor (93), and an electronic control unit (90). The electronic control unit (90) i...
https://drivepatents.com/patents/938076 · 7 Sep 2016
A turbocharger-equipped internal combustion engine includes an exhaust turbine (27), an exhaust filter (84), a differential pressure detector (92), an atmospheric pressure sensor (93), and an electronic control unit (90). The electronic control unit (90) i...
https://drivepatents.com/patents/939434 · 10 Aug 2016
Provided is an exhaust gas purification system 1 including a catalyst device 31a configured to recover a purification capacity of a catalyst by an air-fuel ratio richness control, wherein a richness control permission range ± where the air-fuel ratio rich...
https://drivepatents.com/patents/939423 · 10 Aug 2016
When a catalyst temperature T of a catalyst device 31a is at or below a lower limit catalyst temperature Tc, the air-fuel ratio richness control is prohibited. When a first timing ti1 where an estimated value V of a NOx storage amount has reached an enrich...
https://drivepatents.com/patents/945213 · 6 Apr 2016
The invention relates to an exhaust aftertreatment system (A), preferably a modularly constructed exhaust aftertreatment system (A), preferably for a vehicle or a pump or power generation unit, with at least one exhaust module (M1) that has an inlet sectio...
https://drivepatents.com/patents/945373 · 30 Mar 2016
The invention relates to an exhaust aftertreatment system (A), preferably a modularly constructed exhaust aftertreatment system (A), preferably for a vehicle or a pump or power generation unit, having at least one exhaust module (M1) which has an inlet sec...