Abstract: A method for controlling a powertrain of a hybrid vehicle includes the following steps performed by a hybrid controller: determining whether an ambient air temperature is lower than a predetermined temperature; driving a motor and operating a heating disc of an electrically heated catalytic converter disposed in an exhaust pipe of an internal combustion engine during a predetermined operating time when an ambient air temperature is lower than a predetermined temperature; supplying ambient air to the heating disc; and varying a flow rate of the ambient air supplied to the heating disc in response to a temperature change of the heating disc.

Abstract: A method for controlling an exhaust aftertreatment system for a vehicle includes: determining, by a controller, whether or not a driving state of the vehicle satisfies a clogging determination condition; estimating, by the controller, a normal temperature of a rear end of a catalytic converter upon determining that the clogging determination condition is satisfied; calculating, by the controller, clogging indexes using an actual temperature of the rear end of the catalytic converter measured by a temperature sensor and the estimated normal temperature; determining, by the controller, whether or not it is necessary to settle clogging of the catalytic converter by comparing the clogging indexes with reference ranges; and executing, by the controller, a clogging settlement mode upon determining that it is necessary to settle clogging of the catalytic converter.

Abstract: The present invention provides a non-PGM catalyst for burning carbon soot without using a noble metal, the non-PGM catalyst comprising: a cerium-praseodymium complex oxide and an iron oxide, the cerium-praseodymium complex oxide impregnated with silver (Ag). The cerium-praseodymium complex oxide illustratively consists of 60 to 95 wt % of cerium oxide and 5 to 40 wt % of praseodymium oxide, and silver (Ag) impregnated in the complex oxide is 1.5 to 3.0 parts by weight of the total weight of the complex oxide. The iron oxide may be an oxide in a form of particles separate from the cerium-praseodymium complex oxide in which silver is impregnated, and may be 0.5 to 2 parts by weight of the total weight of the cerium praseodymium complex oxide.

Abstract: A system and method for controlling an exhaust after-treatment apparatus for vehicle are provided. The method includes detecting, by a controller, signals from a front lambda sensor and a rear lambda sensor of a Lean NOx Trap (LNT), when an engine is driven in a rich mode and acquiring, by the controller, a temperature of exhaust gas detected by a temperature sensor, when the engine is driven in a rich mode. Further the method includes comparing, by the controller, the signals from the front lambda sensor and the rear lambda sensor to detect a breakthrough time when a breakthrough occurs between the signals from the front lambda sensor and the rear lambda sensor. In addition, the controller is configured to determine an additional rich time period based on the breakthrough time and the temperature of exhaust gas.

Abstract: The present invention provides a non-PGM catalyst for burning carbon soot without using a noble metal, the non-PGM catalyst comprising: a cerium-praseodymium complex oxide and an iron oxide, the cerium-praseodymium complex oxide impregnated with silver (Ag). The cerium-praseodymium complex oxide illustratively consists of 60 to 95 wt % of cerium oxide and 5 to 40 wt % of praseodymium oxide, and silver (Ag) impregnated in the complex oxide is 1.5 to 3.0 parts by weight of the total weight of the complex oxide. The iron oxide may be an oxide in a form of particles separate from the cerium-praseodymium complex oxide in which silver is impregnated, and may be 0.5 to 2 parts by weight of the total weight of the cerium praseodymium complex oxide.

Abstract: A white smoke reduction system for a diesel vehicle reduces white smoke generated from a diesel vehicle. The white smoke reduction system includes a diesel oxidation catalyst (DOC) mounted on an exhaust line connected to an engine to oxidize exhaust gas through a catalyst. A filter module is connected to a rear end of the DOC to collect particulate matter contained in the exhaust gas and is coated with a ceria (CeO2) ingredient such that sulfur oxide is separated at a temperature equal to or more than 600° C.

Abstract: An SDPF (SCR on Diesel Particular Filter) includes a porous filter collecting PM (Particulate Materials) of diesel exhaust gas, an SCR (Selective Catalytic Reduction) catalyst layer coated on an exhaust gas inlet of the filter, an aluminum oxide layer coated on an exhaust gas outlet of the filter, and a precious metal catalyst layer coated on the surface of the aluminum oxide layer, and a method for producing the same.

Abstract: A diesel particulate filter includes a carrier in which facing sides of a plurality of filter walls are spaced apart from each other form an exhaust gas inlet channel and an exhaust gas outlet channel, and a plurality of plugs are disposed to block a back end of the exhaust gas inlet channel and a front end of the exhaust gas outlet channel. A porosity or a pore size of the filter walls in a front part of the carrier is different from a porosity or a pore size of the filter walls in a back part of the carrier. The front part and the back part of the carrier are divided based on a longitudinal direction of the exhaust gas inlet channel, to prevent soot trapped in the carrier from being concentrated in a back-end part of the diesel particulate filter.

Abstract: The present invention provides a non-PGM catalyst for burning carbon soot without using a noble metal, the non-PGM catalyst comprising: a cerium-praseodymium complex oxide and an iron oxide, the cerium-praseodymium complex oxide impregnated with silver (Ag). The cerium-praseodymium complex oxide illustratively consists of 60 to 95 wt % of cerium oxide and 5 to 40 wt % of praseodymium oxide, and silver (Ag) impregnated in the complex oxide is 1.5 to 3.0 parts by weight of the total weight of the complex oxide. The iron oxide may be an oxide in a form of particles separate from the cerium-praseodymium complex oxide in which silver is impregnated, and may be 0.5 to 2 parts by weight of the total weight of the cerium praseodymium complex oxide.

Abstract: The present invention provides a non-PGM catalyst for burning carbon soot without using a noble metal, the non-PGM catalyst comprising: a cerium-praseodymium complex oxide and an iron oxide, the cerium-praseodymium complex oxide impregnated with silver (Ag). The cerium-praseodymium complex oxide illustratively consists of 60 to 95 wt % of cerium oxide and 5 to 40 wt % of praseodymium oxide, and silver (Ag) impregnated in the complex oxide is 1.5 to 3.0 parts by weight of the total weight of the complex oxide. The iron oxide may be an oxide in a form of particles separate from the cerium-praseodymium complex oxide in which silver is impregnated, and may be 0.5 to 2 parts by weight of the total weight of the cerium praseodymium complex oxide.

Abstract: An apparatus and a method for processing exhaust gas are provided. The apparatus includes a lean NOx trap (LNT), a selective catalytic reduction (SCR) catalyst, and an oxygen storage catalyst containing an oxygen storage material and a precious metal sequentially disposed along an exhaust gas flow direction. The apparatus also includes a front lambda sensor disposed upstream of the LNT, a rear lambda sensor disposed downstream of the oxygen storage catalyst, and a temperature sensor configured to measure a temperature of exhaust gas.

Abstract: A system and method for controlling an exhaust after-treatment apparatus for vehicle are provided. The method includes detecting, by a controller, signals from a front lambda sensor and a rear lambda sensor of a Lean NOx Trap (LNT), when an engine is driven in a rich mode and acquiring, by the controller, a temperature of exhaust gas detected by a temperature sensor, when the engine is driven in a rich mode. Further the method includes comparing, by the controller, the signals from the front lambda sensor and the rear lambda sensor to detect a breakthrough time when a breakthrough occurs between the signals from the front lambda sensor and the rear lambda sensor. In addition, the controller is configured to determine an additional rich time period based on the breakthrough time and the temperature of exhaust gas.

Abstract: The present invention provides a non-PGM catalyst for burning carbon soot without using a noble metal, the non-PGM catalyst comprising: a cerium-praseodymium complex oxide and an iron oxide, the cerium-praseodymium complex oxide impregnated with silver (Ag). The cerium-praseodymium complex oxide illustratively consists of 60 to 95 wt % of cerium oxide and 5 to 40 wt % of praseodymium oxide, and silver (Ag) impregnated in the complex oxide is 1.5 to 3.0 parts by weight of the total weight of the complex oxide. The iron oxide may be an oxide in a form of particles separate from the cerium-praseodymium complex oxide in which silver is impregnated, and may be 0.5 to 2 parts by weight of the total weight of the cerium praseodymium complex oxide.

Abstract: The present invention provides a non-PGM catalyst for burning carbon soot without using a noble metal, the non-PGM catalyst comprising: a cerium-praseodymium complex oxide and an iron oxide, the cerium-praseodymium complex oxide impregnated with silver (Ag). The cerium-praseodymium complex oxide illustratively consists of 60 to 95 wt % of cerium oxide and 5 to 40 wt % of praseodymium oxide, and silver (Ag) impregnated in the complex oxide is 1.5 to 3.0 parts by weight of the total weight of the complex oxide. The iron oxide may be an oxide in a form of particles separate from the cerium-praseodymium complex oxide in which silver is impregnated, and may be 0.5 to 2 parts by weight of the total weight of the cerium praseodymium complex oxide.

Abstract: Disclosed herein is a method of determining a DOC regeneration cycle of a vehicle, in which the DOC regeneration cycle is determined such that a rich fuel-air mixture is repeatedly and periodically applied to the DOC, and the regeneration of the DOC is accelerated, thereby improving the purification performance of the DOC.

Abstract: Disclosed herein is a method of determining a DOC regeneration cycle of a vehicle, in which the DOC regeneration cycle is determined such that a rich fuel-air mixture is repeatedly and periodically applied to the DOC, and the regeneration of the DOC is accelerated, thereby improving the purification performance of the DOC.

Abstract: An SDPF (SCR on Diesel Particular Filter) includes a porous filter collecting PM (Particulate Materials) of diesel exhaust gas, an SCR (Selective Catalytic Reduction) catalyst layer coated on an exhaust gas inlet of the filter, an aluminum oxide layer coated on an exhaust gas outlet of the filter, and a precious metal catalyst layer coated on the surface of the aluminum oxide layer, and a method for producing the same.

Abstract: The present invention provides a non-PGM catalyst for burning carbon soot without using a noble metal, the non-PGM catalyst comprising: a cerium-praseodymium complex oxide and an iron oxide, the cerium-praseodymium complex oxide impregnated with silver (Ag). The cerium-praseodymium complex oxide illustratively consists of 60 to 95 wt % of cerium oxide and 5 to 40 wt % of praseodymium oxide, and silver (Ag) impregnated in the complex oxide is 1.5 to 3.0 parts by weight of the total weight of the complex oxide. The iron oxide may be an oxide in a form of particles separate from the cerium-praseodymium complex oxide in which silver is impregnated, and may be 0.5 to 2 parts by weight of the total weight of the cerium praseodymium complex oxide.

Abstract: An exhaust-downpipe of a vehicle may include a base portion connected to a top of a catalyst converter having a vertical cylinder, an inlet circularly opened in a horizontal direction, an introduction round portion extending straight along the horizontal direction from the inlet and then and curvedly bent downward toward the base portion, and branch line portions connected to both outsides above the base portion with both ways branching and drawing a circular arc from the introduction round portion.

Abstract: A diesel oxidation catalyst mounted on an exhaust pipe that exhausts an exhaust gas generated in an engine to the exterior may include a first portion having a hydrocarbon trap (HC trap) coated thereon, the HC trap absorbing or releasing a hydrocarbon (HC) depending on whether or not a predetermined condition is satisfied, and a second portion having an oxidation catalyst coated thereon, the oxidation catalyst oxidizing the hydrocarbon (HC) and a carbon monoxide (CO) in the exhaust gas, wherein the second portion performs oxidation reaction with the HC released from the first portion and releases sulphur absorbed at the oxidation catalyst by using oxidation heat generated in the oxidation reaction thereof.