| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 123625000 | Responsive to engine or environmental condition | 9 |
| 20080257323 | Internal combustion engine system and vehicle, and ignition control method for internal combustion engine system - When a transient knocking occurrence prediction condition is met, that is, when a cooling water temperature θw is not lower than a threshold value θwref, an intake air quantity Qa is not smaller than a threshold value Qaref, and an intake air quantity difference ΔQa is not smaller than a threshold value ΔQaref (S | 10-23-2008 |
| 20100175672 | System and Method for Facilitating Homogeneous Charge Compression Ignition - A method of transitioning between homogeneous charge compression ignition and spark ignition in a combustion chamber of an engine that is configured for homogeneous charge compression ignition under at least some engine operating conditions and for spark ignition under at least some engine operating conditions, the method comprising heating contents of the combustion chamber with a glow plug prior to transitioning between homogeneous charge compression ignition and spark ignition. | 07-15-2010 |
| 20100263644 | Ignition device for internal combustion engine - When an ECU applies to an igniter a plurality of pulse signals, the duty ratio of which is lower than a predetermined duty ratio, as a lock release signal, a latch circuit of a lock inhibition circuit stops applying a shut-off signal to a shut-off circuit thereby to release a lock condition of an IGBT. A drive main circuit thus restarts current supply to the IGBT. A condition detection circuit outputs to the ECU a condition signal corresponding to the current supplied while the IGBT is turned on. | 10-21-2010 |
| 20130146040 | IGNITION CIRCUIT - An ignition circuit for a combustion engine has an ignition coil and a control unit for the coil. The coil and the control unit are included in a common component as an ignition module. The module is supplied with voltage by a generator driven by the engine. A spark plug and the coil form a power circuit which includes a line segment to a reference potential outside the module. A sensor detects data of the engine and the output of the sensor is supplied to the module. The sensor is supplied with voltage via a sensor circuit. The sensor circuit and the power circuit use the line segment as a common connection to the reference potential, so that for a defect of the line segment, a missing connection to the reference potential in the high voltage circuit is recognized via the change of the sensor output signals. | 06-13-2013 |
| 20130152910 | INTERNAL COMBUSTION ENGINE IGNITION DEVICE - An internal combustion engine ignition device can determine ignition timing with high precision to perform ignition with high precision even where noise superimposed at the time of rise of current flowing through an ignition coil is generated. In an internal combustion engine ignition device including an output terminal for detecting an internal state such as a coil current, it is possible to prevent generation of pulse noise in the form of chattering at falling and rising edges of a voltage of the output terminal by using a hysteresis comparator, even if noise is superimposed at the time of rise of the coil current. Therefore, a voltage pulse with pulse width of high precision is transmitted to an electronic control unit without the influence of noise, and the ignition timing can be determined properly with high precision. | 06-20-2013 |
| 20140209076 | IGNITION PLUG AND METHOD FOR THE IGNITION OF A FUEL-AIR MIXTURE BY MEANS OF AN IGNITION PLUG OF SAID TYPE - An adjustable ignition plug, with one or more variable electrodes, and a method to adjust the electrode gap spacing based on various engine operating parameters. This better enables the reliable ignition of the air-fuel mixture in a cylinder of a direct-injection internal combustion engine under various engine operating conditions. | 07-31-2014 |
| 20160069319 | INTERNAL COMBUSTION ENGINE IGNITION DEVICE AND IGNITION METHOD - When an operating condition including load and speed of an internal combustion engine is in a prescribed low-speed high-load region, i.e., an energy suppression region, having a possibility causing pre-ignition, energization time TDWLMIN for the energy suppression region is selected as a primary coil energization time. In other normal regions, normal energization time TDWL is selected. Normal energization time TDWL has a characteristic such that the normal energization time shortens, as the engine speed increases. In a low speed region, a given energization time that can fulfil a discharge energy required in a high exhaust gas recirculation region is provided. Energization time TDWLMIN for the energy suppression region is constant regardless of engine speeds and relatively short, and is set to a level such that a coil generated maximum voltage does not exceed a withstand voltage of a spark plug even when no-discharge occurs due to pre-ignition. | 03-10-2016 |
| 20160201636 | INTERNAL COMBUSTION ENGINE LEAKAGE DETECTION APPARATUS | 07-14-2016 |
| 123626000 | Oscillator or trigger circuit responsive to engine condition | 1 |
| 20120085327 | INTERNAL-COMBUSTION-ENGINE ELECTRONIC CONTROL SYSTEM - An internal-combustion-engine electronic control system according to the present invention is provided with a power switching device that applies or shuts off a primary current of an ignition coil of an internal combustion engine so that at the secondary side of the ignition coil, there is generated a voltage for making an ignition plug of the internal combustion engine produce a spark discharge; and a control unit that turns on or off the power switching device. The internal-combustion-engine electronic control system is characterized in that the control unit is provided with a circuit unit that makes the power switching device softly shut off so as to prevent the ignition plug from producing the spark discharge, and in accordance with the characteristics of the power switching device, the control unit changes the characteristics of the soft shutoff halfway through the shutoff operation. | 04-12-2012 |
