| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 123406200 | Separate control for each cylinder | 12 |
| 20110041803 | Ignition Coil With Ionization And Digital Feedback For An Internal Combustion Engine - Systems and methods for controlling an internal combustion engine include an ignition coil that generates a pre-discharge ionization signal during charging of the ignition coil after reaching a first threshold charge level and prior to spark discharge and a controller that determines an engine operating condition, such as pre-ignition or plug fouling, in response to the pre-discharge ionization signal. The ignition coil may also generate digital feedback and ionization signals used to by the controller for to control ignition coil dwell and repetitive sparking, as well as providing various combustion diagnostics. | 02-24-2011 |
| 20110126801 | METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE - A method for operating an internal combustion engine having several cylinders, successive time windows, each of which is assigned to a cylinder being defined in a control unit in one time window, a calculation of an ignition time, a start of a charging process for an ignition device, and a triggering of an ignition for a cylinder assigned to the time window being performed; it being necessary for an ignition to start the charging process for the ignition device, the extent of which is at least as long as one time period needed for charging; the following steps being carried out in each time window: ascertaining information for an ignition time for a cylinder assigned to the subsequent time window; establishing whether the ignition time for the cylinder assigned to the subsequent time window is after the beginning of the subsequent time window by at least the time needed for charging; if it is established that the ignition time for the cylinder assigned to the subsequent time window is after the beginning of the subsequent time window by less than the time needed for charging, then starting of a charging process for the ignition device of the cylinder assigned to the subsequent time window. | 06-02-2011 |
| 20110180037 | Cylinder deactivation EMS control - A method of managing a number of active cylinders of an engine can be provided. The method comprises: determining for a current engine operating condition a number of active cylinders required for the current engine operating condition; if the determined number of active cylinders is different than a current number of active cylinders, selecting one or more cylinder which is to be activated or deactivated in order to provide the determined number of active cylinders; where one or more cylinders is to be activated, retarding ignition timing for a cylinder preceding in firing order the first firing of a first activated cylinder; and where one or more cylinders is to be deactivated, advancing ignition timing for a cylinder that is not to be deactivated and which precedes in firing order a first cylinder which is to be deactivated. | 07-28-2011 |
| 20130081596 | IGNITION TIMING CONTROLLING APPARATUS FOR ENGINE, AND VEHICLE INCORPORATING THE SAME - An ignition timing controlling apparatus for an engine includes an ignition timing map in which high-torque ignition timings are stored, an ECU for changing a high-torque ignition timing obtained from the ignition timing map into a fuel-conserving ignition timing, and an advance angle target amount map in which advance angle target amounts with which the high-torque ignition timing is to be changed into the fuel-conserving ignition timing are stored. The ECU is operable to calculate an advance angle target amount for each of cylinders of the engine based on the advance angle target amount map when a running state of a vehicle is in a cruise state in which little acceleration or deceleration is included, and also to execute advance angle control of changing the ignition timing of each of the cylinders stepwise with respect to the advance angle target amount for each of the cylinders. | 04-04-2013 |
| 20150354471 | METHOD OF REGULATING AN INTERNAL COMBUSTION ENGINE - A method of regulating an internal combustion engine ( | 12-10-2015 |
| 20150361912 | INTERNAL COMBUSTION ENGINE - An internal combustion engine comprising: a plurality of cylinders in which combustion chambers are provided, wherein an ignition device and/or a fuel introduction device is associated with each combustion chamber, wherein the combustion chambers are adapted for cyclic ignition of fuel, an open-loop or closed-loop control device for actuation or closed-loop control of the ignition devices and/or fuel introduction devices, and at least one measuring device for detecting a temperature which is characteristic for each cylinder, wherein the open-loop or closed-loop control device is adapted for actuation or closed-loop control of the ignition devices or the fuel introduction devices in dependence on the signals of the at least one measuring device so that no ignition takes place in at least one selected cylinder during at least one cycle and that an even temperature distribution over all cylinders is achieved. | 12-17-2015 |
| 20150369141 | IMPLEMENTING SKIP FIRE WITH START/STOP FEATURE - A variety of methods and arrangements for implementing a start/stop feature in a skip fire engine control system are described. In one aspect, the implementation of the start/stop feature involves automatically turning off an internal combustion engine under selected circumstances during a drive cycle. A determination is made that the engine should be restarted. During the engine startup period, the engine is operated in a skip fire manner such that a desired engine speed is reached. | 12-24-2015 |
| 123406210 | Knock responsive | 5 |
| 20080289602 | METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE - A method for controlling an internal combustion engine with at least two cylinders in the case of irregular running caused by combustion problems has the following steps: measurement of a segment time of a first cylinder during a first time interval T | 11-27-2008 |
| 20100024769 | EXTENDING VARIABLE DISPLACEMENT OPERATION THROUGH SPARK KNOCK CONTROL - A control system comprising a spark knock detection module that detects a spark knock in an engine of a hybrid vehicle, and a torque control module that selectively regulates an engine torque output and an electric machine torque output based on the spark knock. A method comprising detecting a spark knock in an engine of a hybrid vehicle, and selectively regulating an engine torque output and an electric machine torque output based on the spark knock. | 02-04-2010 |
| 20150096534 | METHODS AND SYSTEMS FOR VARIABLE DISPLACEMENT ENGINE CONTROL - Methods and systems are provided for selecting a group of cylinders for selective deactivation, in a variable displacement engine system, based at least on a regeneration state of an exhaust catalyst. The position of one or more valves and throttles may be adjusted based on the selective deactivation to reduce back-flow through the disabled cylinders while also maintaining conditions of a downstream exhaust catalyst. Pre-ignition and knock detection windows and thresholds may also be adjusted based on the deactivation to improve the efficiency of knock and pre-ignition detection. | 04-09-2015 |
| 20150114349 | METHOD FOR PREVENTING A PREMATURE IGNITION IN AN INTERNAL COMBUSTION ENGINE AND INTERNAL COMBUSTION ENGINE - Methods for preventing a premature ignition of a cylinder charge in advance of a planned ignition point in an internal combustion engine are provided. In one method, a pressure in a crankcase of the internal combustion engine is adjusted so as to prevent lubricating oil constituents from being transported from the crankcase to a combustion chamber of a cylinder of the internal combustion engine due to a pressure ratio between the crankcase and the combustion chamber. In another method, an ignition point for a cylinder of the internal combustion engine is adjusted in a given operating range of the internal combustion engine in such a way that the adjusted ignition point brings about a knocking combustion in the cylinder. Internal combustion engines having a device for preventing a premature ignition of a cylinder charge in advance of a planned ignition point are also provided. | 04-30-2015 |
| 20160053703 | METHOD FOR AVOIDING PRE-IGNITIONS DURING THE OPERATION OF AN INTERNAL COMBUSTION ENGINE - A method for avoiding pre-ignitions during the operation of an internal combustion engine includes measuring a noise level of a combustion process using an acceleration sensor. An amplitude an amplitude of the measured noise level is measured to detect pre-ignitions. If, in the analysis, the measured noise level of a combustion cycle exceeds a limiting value n times, a safety operating mode of the internal combustion engine for reducing an effecting compression in the combustion chamber is activated. The safety operating mode is maintained if exceeding of the amplitude limiting value is also detected in subsequent combustion cycles of the internal combustion engine. | 02-25-2016 |
