Patent application number | Description | Published |
20100077735 | EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - An exhaust gas control apparatus for an internal combustion engine includes: a catalyst that is provided in an exhaust system of an internal combustion engine; a HC adsorption member that is provided in the exhaust system at a position downstream of the catalyst, and that has a function of adsorbing hydrocarbon in exhaust gas; a secondary air supply device that supplies secondary air to the exhaust system at a portion upstream of the catalyst; a supply prohibition unit that prohibits supply of the secondary air when the internal combustion engine is started; and a supply start time control unit that controls the time when supply of the secondary air is started after the internal combustion engine is started based on the amount of hydrocarbon discharged from the internal combustion engine or a value correlated with the amount of hydrocarbon discharged from the internal combustion engine. | 04-01-2010 |
20110174256 | CONTROL APPARATUS AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - In a startup operation of an internal combustion engine, the internal combustion engine is started by supplying fuel to only a first cylinder group formed of a portion of cylinders, from among a plurality of cylinders that make up the internal combustion engine, when a startup condition of the internal combustion engine has been satisfied, and then fuel starts to be supplied to a second cylinder group formed of the remaining cylinders after the internal combustion engine has started. Meanwhile, in a stopping operation of the internal combustion engine, the internal combustion engine is stopped when a shutoff condition of the internal combustion engine is satisfied, by first stopping the supply of fuel to the second cylinder group and then stopping the supply of fuel to the first cylinder group after the supply of fuel to the second cylinder group has been stopped. | 07-21-2011 |
20110197860 | INTERNAL COMBUSTION ENGINE CONTROLLER - An internal combustion engine is started by performing fuel supply into part of a plurality of cylinders included in the internal combustion engine. After the magnitude of the negative pressure produced in intake piping of the internal combustion engine exceeds a predetermined reference value, fuel supply into the remaining cylinder(s) is started. | 08-18-2011 |
20110203552 | CONTROL APPARATUS AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine starts the internal combustion engine by initiating combustion in cylinders belonging to a first cylinder group, from among a plurality of cylinders that make up the internal combustion engine. The control apparatus monitors a change in an amount of negative pressure generated in an intake pipe when the internal combustion engine is started, and obtains information related to an alcohol concentration of fuel used in the internal combustion engine. The control apparatus also calculates a fuel injection quantity necessary to initiate combustion in cylinders belonging to a second cylinder group, based on the amount of negative pressure generated in the intake pipe and the alcohol concentration of the fuel, and initiates combustion in each cylinder belonging to the second cylinder group when the necessary fuel injection quantity enters a range of quantities that are able to be injected by corresponding injectors. | 08-25-2011 |
20110283684 | CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE - A control system of an internal combustion engine in which a first fuel of ammonia and a second fuel which is easier to burn than ammonia are used as fuels. An ammonia ratio is usually set to a reference ammonia ratio which is determined in advance in accordance with an operating state of an engine. At the time when feed of the fuel is restarted after suspension of feed of the fuel at the time of deceleration, the ammonia ratio is temporarily made lower than the reference ammonia ratio in accordance with the operating state of the engine. | 11-24-2011 |
20110283959 | AMMONIA BURNING INTERNAL COMBUSTION ENGINE - An ammonia burning internal combustion engine in which, in addition to ammonia, a reformed gas reformed at a reformer is fed into a combustion chamber. When a reforming ability of the reformer is less than a predetermined reforming ability, an ammonia ratio is increased to a ratio more than the ammonia ratio after completion of engine warmup set in advance in accordance with an operation state of the engine, and secondary air is fed from a secondary air feeding device into an engine exhaust passage upstream of an exhaust purification catalyst. | 11-24-2011 |
20130255630 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A control apparatus for an internal combustion engine that can suppress the emission of unburned HC accompanying start-up of an internal combustion engine. The control apparatus including a fuel supply control unit that initially supplies fuel to only some cylinders, and delays the start of fuel supply to delayed cylinders that are cylinders other than the aforementioned cylinders; an engine discharge gas HC amount predicting unit that calculates a relationship between a delayed cylinder starting engine speed that is a engine speed at a timing at which a cycle starts in which a delayed cylinder initially carries out combustion and a predicted value of an engine discharge gas HC amount; and a target engine speed calculating unit that calculates a target engine speed that is a target value of the delayed cylinder starting engine speed. | 10-03-2013 |
20140035751 | ABNORMALITY DIAGNOSIS APPARATUS FOR COOLING SYSTEM - An abnormality diagnosis apparatus for a cooling system includes a cooling portion that is formed in the component of the cooling system and has an internal flow path for flowing a coolant, a non-cooling portion that is formed in the component and has a closed flow path obtained by closing at least a part of the internal flow path, and an abnormality diagnosis portion that performs abnormality diagnosis of the cooling system based on temperature characteristics of the cooling portion and temperature characteristics of the non-cooling portion during flowing of the coolant. | 02-06-2014 |
20140202138 | EXHAUST GAS PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE - The invention relates to an exhaust control device of an engine ( | 07-24-2014 |
20140331652 | EXHAUST GAS PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE - The invention relates to an exhaust gas purification device of an internal combustion engine comprising a catalyst ( | 11-13-2014 |