Class / Patent application number | Description | Number of patent applications / Date published |
123406530 | Starting condition responsive | 8 |
20090071441 | ELECTRICAL IGNITION METHOD FOR INTERNAL COMBUSTION ENGINES - Electrical ignition procedure for internal combustion engines, using an arrangement of multiple coils and of a magnetic generator that is coupled with the machine and turns synchronous to the machine, whose magnetic field partially flows through the coils and thereby generates a sequence of magnetic flux changes for each revolution, whereby a sequence of corresponding alternating current half waves is induced in the coils, that are used for:
| 03-19-2009 |
20100037860 | INTERNAL COMBUSTION ENGINE CONTROLLING APPARATUS - In a predetermined low-temperature startup state (in a rich atmosphere), in principle, over-advanced ignition control for advancing ignition timing beyond MBT and intake-synchronized injection control for causing the entire amount of to-be-injected fuel to undergo intake-synchronized injection are executed. Thus, the peak of intra-cylinder temperature increases, and the amount of port-adhering fuel decreases, whereby the emission amount of unburnt HC can be reduced. However, when the PM emission amount exceeds a PM permissible amount, instead of the intake-synchronized injection control, there is performed processing for causing a portion of the to-be-injected fuel to undergo intake-unsynchronized injection and causing the remaining fuel to undergo intake-synchronized injection. Thus, the amount of intra-cylinder-adhering fuel decreases, and the partial oxidation reaction of the intra-cylinder-adhering fuel, which is a cause of generation of PM, is suppressed. As a result, the PM emission amount decreases, whereby the PM emission amount can be suppressed to the PM permissible amount. | 02-18-2010 |
20110303189 | POSITIVE DETECTION OF ENGINE POSITION DURING ENGINE STARTING - A system for managing ignition of a light-duty internal combustion engine during starting includes a charge winding used to create an ignition pulse; a first signal generated by the charge winding that indicates the speed of an engine; a second signal generated by the charge winding that indicates a piston position of the engine; a switch coupled to the charge winding for controlling the ignition pulse; and a processing device that receives the first signal and the second signal, wherein the processing device activates the switch when a comparison of the received first signal and second signal indicates that a piston is positioned at approximately top dead center (TDC). | 12-15-2011 |
20130146024 | METHOD FOR IMPROVING ENGINE STARTING - A method for improving exhaust after treatment initial warm up during engine starting is presented. In one example, the method adjusts an engine air flow amount to a level where a desired substantially constant heat flux is provided by the engine to an exhaust after treatment device. The method may reduce fuel consumption and a need for a vacuum pump to provide vacuum to vacuum consumers of a vehicle during exhaust after treatment heating. | 06-13-2013 |
20150059697 | IGNITION TIMING CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE - A water temperature indicated at a startup timing of an engine is stored as a startup-timing water temperature. During an idling state generated after a cold start, a retard amount (S) is calculated based on the startup-timing water temperature. At this time, the retard amount (S) is set at a larger level as the startup-timing water temperature becomes higher. However, in a case that the startup-timing water temperature is higher than a predetermined temperature, the retard amount (S) is set at a smaller level as the startup-timing water temperature becomes higher. A retard amount (R) is calculated based on a current water temperature in the same manner as the retard amount (S). A smaller one is selected from the retard amount (S) and the retard amount (R), as a basic retard amount. | 03-05-2015 |
20150096535 | ENGINE STARTING DEVICE AND ENGINE STARTING METHOD - The engine starting device for stopping, when an engine automatic stop condition is satisfied, fuel injection to the engine to automatically stop the engine, and for thereafter restarting the engine when an engine restart condition is satisfied, includes: a ring gear coupled to a crankshaft of the engine; a starter motor rotated by a current supply; a pinion gear for transmitting the rotation of the starter motor to the ring gear; a pinion gear moving part for moving the pinion gear toward the ring gear by a current supply, thereby meshing the pinion gear with the ring gear; and a fuel injection control part for restarting the fuel injection so that combustion is generated in a predetermined compression cylinder after the engine restart condition is satisfied and after the pinion gear moving part starts the movement of the pinion gear. | 04-09-2015 |
123406540 | Start detected by engine speed | 2 |
20080223339 | START SAFETY IGNITION SYSTEM - A method for controlling an ignition system of an internal combustion engine having a primary firing pulse generator for charging a capacitor. An electronic switch is included for discharging the capacitor via an ignition coil to generate an ignition voltage. A microcomputer operates the switch to control the ignition timing of the generator. The microcomputer is in communication with a speed sensor that detects the rotational speed of the engine and a speed limitation control that limits the engine speed to a limitation speed below the clutch-in speed of an included centrifugal clutch. The speed limitation control is active or activated when one of either starting the engine or an operating problem of the power tool is detected. The speed limitation control is deactivated when a low speed state of the engine is detected. | 09-18-2008 |
20100319659 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - A control device for an internal combustion engine which, at cold starting, enables an ignition timing retard control for warm-up of a catalyst device and a speed feedback control by means of ignition timing for converging an engine speed to a target speed includes a function for comparing a final ignition timing with a retard lower limit value, and a function for changing the target speed based upon the result of the comparing. When the final ignition timing reaches the retard lower limit value, the target speed is increased by a predetermined speed and when a difference between the final ignition timing and the retard lower limit value exceeds a predetermined angle on an advance side, the target speed is decreased by a predetermined speed. In this way, at cold starting, the engine speed is early converged to the target speed while restricting rotational variations and early warm-up of a catalyst device can be certainly realized. | 12-23-2010 |