Class / Patent application number | Description | Number of patent applications / Date published |
123491000 | Starting condition responsive | 20 |
20080196696 | DIRECT INJECTION EVENT-BASED ENGINE STARTING - A method for starting an internal combustion engine having direct fuel injection, comprising of adjusting a number of direct injections per combustion cycle based on a cylinder event number from a first cylinder event. | 08-21-2008 |
20080196697 | Method of Controlling the Start-Up of an Internal Combustion Engine - A method of controlling the start-up of an engine in which:
| 08-21-2008 |
20080245342 | Method of operating a spark-ignition internal combustion engine during warm-up - In a method for cold-running or warm-up operation of a spark-ignition, direct-injection 4-stroke internal combustion engine having an exhaust gas catalytic converter, wherein fuel is injected into the cylinders of the internal combustion engine by means of injectors and is externally ignited by means of spark plugs, in an intake stroke fuel injection a lean, combustible but non-ignitable lean mixture is produced in the cylinders, in a compression stroke fuel injection following the intake stroke injection, by a compression stroke fuel injection, a combustible and ignitable fuel/air mixture is formed in the combustible but non-ignitable lean mixture in the cylinders and, subsequently, in a stratified fuel injection which is close in timing to an ignition time, a rich fuel/air mixture is locally formed in the region of the spark plug and is then ignited by the spark plug so as to provide for rapid heat up of the cold exhaust gas catalytic converter with reliable combustion and smooth engine operation. | 10-09-2008 |
20080257312 | Control Apparatus for Internal Combustion Engine and Motor Vehicle Equipped With the Same - The engine stop control of the invention uses a correction factor k based on an ambient temperature Tdp in the vicinity of a delivery pipe to set an engine-stop criterion fuel pressure Pref as a fuel pressure of ensuring the sufficient startability of an engine and preventing the vapor generation. The engine stop control stops the operation of the engine after a decrease in fuel pressure Pf in the delivery pipe below the engine-stop criterion fuel pressure Pref. This arrangement effectively prevents the fuel oil-tight leaked from fuel injection valves from being accumulated in cylinders of the engine and thus restrains the poor emission, which may be caused by direct discharge of the fuel accumulated in the cylinders at a restart of the engine. The engine stop control of the invention also reduces the frequency of operation of a relief valve, which works to prevent an excessive increase in fuel pressure Pf in the delivery pipe, thus enhancing the durability of the relief valve. | 10-23-2008 |
20090025689 | Method for Determining Fuel Volatility and Consequently Performing Cold Starting of an Internal Combustion Engine - A method for determining fuel volatility and consequently performing cold starting of an internal combustion engine; in the event of cold starting, the method provides for the determination of an enrichment percentage as a function of a stored value for fuel volatility; the determination of a predicted value for starting quality before performing starting; the starting of the engine using the previously determined enrichment percentage; the determination of a measured value for starting quality; the determination of a correction value of the stored value for fuel volatility as a function of the comparison between the measured value for starting quality and the predicted value for starting quality; and the updating of the stored value for fuel volatility by applying the correction value to said stored value, so consequently modifying the amount of enrichment in force. | 01-29-2009 |
20090101115 | Control apparatus and control method for internal combustion engine - In at least a first cycle at startup, an opening timing of an exhaust valve is controlled to 45 degrees before-bottom-dead-center of an exhaust stroke, or to a retard side of the normal closing timing that is set after warm-up is complete. Also, the closing timing of the exhaust valve is preferably controlled to an advance side of top-dead-center in a second cycle at startup and thereafter at the latest. Accordingly, the amount of unburned HC discharged during a cold start of an internal combustion engine is reduced. | 04-23-2009 |
20090314260 | START CONTROL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE - A start control apparatus for an internal combustion engine, which takes an amount of a fuel vaporized from a heated fuel into consideration to prevent deterioration of startability due to an overrich or overlean condition caused by an excessive or insufficient amount of the vaporized fuel and to realize improvement of cold startability. The start control apparatus includes: a heater ( | 12-24-2009 |
20100163004 | START-UP CONTROL DEVICE AND START-UP CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - An engine ECU stores a map in which three regions, that is, a high-temperature region ( | 07-01-2010 |
20100192920 | METHOD FOR THE COLD START OF AN INTERNAL COMBUSTION ENGINE - The invention relates to a method for starting an internal combustion engine associated with a starter for driving the engine when starting the latter and to means for adapting the amount of injected fuel. According to the invention, the method comprises the following steps: during a first start operation, counting the number of revolutions (PMH) of the engine when it is driven by the starter; during a second starting operation following the first operation, adapting the amount (Q) of injected fuel based on the number of revolutions (PHM) counted during the first starting operation. | 08-05-2010 |
20100199953 | FUEL INJECTION CONTROLLING APPARATUS OF INTERNAL COMBUSTION ENGINE - A fuel injection controlling apparatus (electronic control unit) of an internal combustion engine, which can cause first to fourth fuel injection valves of respective cylinders connected to a fuel delivery pipe to inject a fuel, which is heated after fed from a fuel pump (feed pump), is provided with a fuel pump control unit that stops a drive of the fuel pump (feed pump) until the heated fuel in the fuel delivery pipe is reduced to a predetermined amount or less. | 08-12-2010 |
20100307458 | Engine - Provided is an engine which can certainly be started even in a very-low-temperature range. The engine comprises a plurality of cylinders, a fuel injection device which injects fuel to the respective cylinders, a combustion chamber temperature calculation means which calculates a temperature in a combustion chamber, a control means which starts the engine by normal operation which injects the fuel to all the cylinders by the fuel injection device or reduced-cylinder operation which injects the fuel to only specified cylinders by the fuel injection device. When starting the engine, the control means controls the engine to conduct the normal operation when the temperature in the combustion chamber calculated by the combustion chamber temperature calculation means is in the very-low-temperature range and to conduct the reduced-cylinder operation when the temperature in the combustion chamber comes into a low-temperature range. | 12-09-2010 |
20110073077 | FUEL INJECTION CONTROL APPARATUS FOR ENGINE - To improve a restart failure during fuel vapor occurrence, in a fuel injection control apparatus for an engine that is not equipped with a battery and starts the engine by a manual operation, the fuel injection control apparatus for an engine includes: an injector that supplies fuel to the engine based on pressure of the fuel supplied by a fuel pump; a power generating section for generating power based on rotation driving of a crank shaft of the engine; a starting device for manually starting the engine; and a control section for starting with power generation voltage by the power generating section and calculating a fuel injection amount based on an operation state of the engine. The control section includes: an injection amount calculating function unit that calculates, according to the operation state of the engine, an injection amount of the fuel to be supplied to the engine; an injection time conversion coefficient calculating function unit that calculates an injection time conversion coefficient for converting the injection amount into injector driving time based on a predicted fuel pressure value; and an injector driving time calculating function unit that calculates driving time of the injector based on an output of the injection amount calculating function unit and an output of the injection time conversion coefficient calculating function unit. | 03-31-2011 |
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 |
20130152903 | METHOD AND SYSTEM FOR IMPROVING ENGINE STARTING - An engine system and method for improving engine starting are disclosed. In one example, engine port throttles are adjusted to improve fuel vaporization of a fuel that includes alcohol. The system and method may improve engine starting and emissions. | 06-20-2013 |
20130213363 | METHOD FOR OPERATING AN AUTO-IGNITION INTERNAL COMBUSTION ENGINE - A method for operating an auto-ignition internal combustion engine that is operable in a single substance mode in which the internal combustion engine is supplied with self-igniting liquid fuel, and a dual substance mode in which the internal combustion engine is supplied with the liquid fuel as an ignition agent and gaseous or liquid alternative fuel, includes operating the internal combustion engine in the dual-substance mode at an increased exhaust gas recirculation rate relative to the single-substance mode, and throttling an air supply in an intake system of the internal combustion engine such that a lambda value in an exhaust gas of the internal combustion engine is in a range greater than 1 up to 1.3. | 08-22-2013 |
20140216415 | COLD START UP AUXILIARY SYSTEM FOR ALCOHOL AND FLEX ENGINES WITH AIR-INLET AND ALCOHOL WARM UP - An internal combustion vehicle cold start control system method is provided. The method includes warming alcohol and air when a door handle is actuated, while the engine is cold and starting an electric turbine connected to an intake manifold. The method also includes actuating valves allowing recirculation of the warmed air through the intake manifold and actuating spark plugs providing an initial warm-up of electrodes and engine cylinders if the temperature is less than 30° C. The starter motor is driven by 2-4 turns of a crankshaft axle so that any cold air in an air filter at the cylinders' entrance is drawn inside and is expelled by the exhaust system. A small volume of the warmed alcohol fuel is maintained in the fuel injectors. The method also includes injecting the warmed alcohol, verifying the minimum air temperature; and deactivating the system after appropriate warm-up of the engine. | 08-07-2014 |
20140338642 | VEHICLE AND CONTROL METHOD FOR VEHICLE - An ECU executes a program including: a step of executing start control of an engine when a stop operation of the engine is in execution, when a restart request is made and when an engine rotation speed is outside a predetermined range; and a step of continuing the stop operation of the engine when the restart request is not made or when the engine rotation speed is within the predetermined range. | 11-20-2014 |
20150083086 | METHOD AND SYSTEM FOR IMPROVING ENGINE STARTING - An engine system and method for improving engine starting are disclosed. In one example, engine port throttles are adjusted to improve fuel vaporization of a fuel that includes alcohol. The system and method may improve engine starting and emissions. | 03-26-2015 |
20160115889 | FUEL INJECTION CONTROL SYSTEM OF INTERNAL COMBUSTION ENGINE - A fuel injection control system of an internal combustion engine driven by an alcohol blended fuel includes a controller that controls the amount of the fuel injected from a fuel injection valve. The controller performs injection amount control after start of cranking, when an alcohol concentration of the alcohol blended fuel is higher than a predetermined concentration, so that the amount of the alcohol blended fuel injected from the fuel injection valve in each fuel injection is controlled to be smaller than an amount of the fuel with which an air-fuel ratio becomes a combustible air-fuel ratio, until an initial explosion occurs. | 04-28-2016 |
20160201635 | CONTROL DEVICE OF ENGINE | 07-14-2016 |