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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 7370634 | Internal combustion engine spark timing control system A method for controlling spark timing in an internal combustion engine. The method includes determining, in response to a knock sensor mounted to the engine, a spark offset to the scheduled spark timing for the engine at relatively low engine speed which is applied ... | 05/13/2008 |
| 7367311 | Control system for compression ignition internal combustion engine A compression ignition internal combustion engine includes injectors, each of which injects fuel into a corresponding cylinder. An ECU determines target ignition timing based on engine operational information and adjusts fuel injection start timing and a fuel inject... | 05/06/2008 |
| 7363142 | Device and method for controlling ignition timing of internal combustion engine An engine ECU executes a program including the steps of: calculating a magnitude value LOG(V) from a magnitude V detected using a knock sensor; calculating a median value V(50) and a standard deviation a of calculated magnitude values LOG(V); calculating a knock det... | 04/22/2008 |
| 7347081 | Knock detecting apparatus and method for internal combustion engine The signal levels of vibration waveform signals outputted by knock sensors are extracted at a filter processing section for each of a plurality of frequency bands. The mean value of the signal levels in the frequency bands at a point in time when variation of the si... | 03/25/2008 |
| 7348782 | Ignition device and spark condition detection method When a spark discharge is produced, a first current flows in one direction. From a rise of an ignition signal to energize an ignition coil to a fall of the ignition signal to deenergize the ignition coil, in order that a second current flowing in the opposite direct... | 03/25/2008 |
| 7290529 | Spark advance controller and production machine of spark advance control logic in internal combustion engine A spark advance controller capable of controlling spark advance in an internal combustion engine with high accuracy without requiring a larger number of data maps and performing laborious optimization tests using an actual engine. In the spark advance controller, ma... | 11/06/2007 |
| 7281516 | Ignition timing control device of internal combustion engine An engine ECU executes a program including the steps of: comparing a vibration waveform of an engine and a knock waveform model stored in advance to calculate a correlation coefficient K; prohibiting correction when a correction prohibiting condition of a determinat... | 10/16/2007 |
| 7263971 | Knocking control device for watercraft engine A knocking control device for a watercraft engine includes a knocking learning value renewing section for changing a knocking learning value toward a low octane number ignition timing map when the knock sensor detects a knocking condition. The device changes the kno... | 09/04/2007 |
| 7246599 | Method for determining the ignition angle A method for determining the ignition angle is provided, in which modifications of manipulated variables which have an influence on the knock limit, and therefore on the optimum ignition angle as well, are dynamically taken into account. To this end, a base ignition... | 07/24/2007 |
| 7243529 | Knock detecting apparatus for internal combustion engine A waveform knock signal detected by a knock sensor is filtered through a band-pass filter. The detected wave form signal is compared with an ideal reference knock waveform to determine an engine knock. The ideal reference knock waveform is derived on the basis of a ... | 07/17/2007 |
| 7181338 | Knock determining apparatus for internal combustion engine For each predetermined crank angular interval, an output of a knock sensor is separated into a plurality of frequency components through a plurality of band-pass filters, and peak values of each frequency component are extracted. Then, a mean and a variance of the p... | 02/20/2007 |
| 7165517 | Control apparatus and method for internal combustion engine with variable compression ratio mechanism A control apparatus for an internal combustion engine includes a variable compression ratio mechanism capable of varying a compression ratio of the engine, a compression ratio setting section that sets a compression ratio to be attained by the variable compression r... | 01/23/2007 |
| 7133766 | Engine combustion state detection device A rotation angle sensor detects the rotation speed of a crankshaft of an engine. An ECU extracts a first frequency component synchronized with combustion cycles of the engine that is contained in a rotation speed signal obtained by the detection of the rotation angl... | 11/07/2006 |
| 7096669 | Method and apparatus for the prevention of critical process variable excursions in one or more turbomachines Many variables in processes such as those using turbocompressors and turbines must be limited or constrained. Limit control loops are provided for the purpose of limiting these variables. By using a combination of closed loop and open loop limit control schemes, exc... | 08/29/2006 |
| 7086382 | Robust multi-criteria MBT timing estimation using ionization signal This feature of the present invention is a robust multi-criteria minimum timing for the best torque (MBT) timing estimation method and apparatus utilizing different ionization signal waveforms that are generated under different engine operating conditions. This feat... | 08/08/2006 |
| 7080629 | Method and device for knock control of an internal combustion engine A method and a device for knock control of an internal combustion engine, in which an adjustment of the ignition angle takes place. When knocking occurs, the ignition angle is retarded and then advanced again. An increasing advance adjustment of the ignition angle r... | 07/25/2006 |
| 7051712 | Method for computing an ignition angle of an internal combustion engine A method for computing an ignition angle of an internal combustion engine as a function of the operating conditions of the engine and knock signals K, which indicate knocking combustion in the engine. If knock occurs, the ignition angle is retarded. If knock stops f... | 05/30/2006 |
| 7021286 | Ignition timing control for internal combustion engine An internal combustion engine (1) causes an air/fuel mixture in a cylinder to combust due to ignition by a spark plug (14). An engine controller (50) calculates an ignition delay of the gas in the cylinder on the basis of an operational state of... | 04/04/2006 |
| 7013871 | Closed loop MBT timing control using ionization feedback This feature of the present invention comprises a closed loop which uses estimated MBT timing criteria and ignition diagnostics (knock, partial-burn, and misfire) to control engine ignition. When the engine is not knock limited, it operates at its MBT timing. When t... | 03/21/2006 |
| 6980901 | Method and device for operating an internal combustion engine A method and a device for operating an engine, in particular of a vehicle, avoid a jump of an output variable of the engine and therefore a jolt of the internal combustion engine in specific operating states of the engine. In this case, the output variable of the in... | 12/27/2005 |
| 6955157 | System for engine retard limit control The present invention provides a system and method for controlling the retard limit of an engine having one or more cylinders in which combustion occurs. A sensor is employed to detect the ionization of the combustion process in the cylinders. The ionization is rela... | 10/18/2005 |
| 6945229 | System for engine knock control The present invention provides a system for controlling knock in an engine having one or more cylinders in which combustion occurs. The system includes a sensor that detects the ionization of the combustion process in the cylinders. The ionization is related to the ... | 09/20/2005 |
| 6932056 | Method for reacting to knock event in an internal combustion engine A control method for controlling an internal combustion engine selects a knock threshold magnitude and compares it to individual knock event magnitudes. The difference between these two values is calculated and limited to be within a predetermined range of values. T... | 08/23/2005 |
| 6925987 | METHOD FOR SETTING A KNOCK DETERMINATION PERIOD IN AN INTERNAL COMBUSTION ENGINE, METHOD FOR SETTING A FUEL INJECTION TIMING IN AN INTERNAL COMBUSTION ENGINE, AND CONTROL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE Under engine operating conditions in which a default setting for a knock determination period overlaps with a fuel injection period during which fuel is injected by a fuel injector, the fuel injection timing and the knock determination period are set in correlation ... | 08/09/2005 |
| 6910461 | Control apparatus for internal combustion engine Based on results of a knock control for adjusting ignition timing in accordance with the occurrence of knocking, an electronic control unit computes deposit required ignition timing akgrg, which is ignition timing determined by taking adhesion of deposits in an inte... | 06/28/2005 |
| 6899082 | Method and system for controlling engine ignition timing The ignition timing control system for an internal combustion engine includes an ignition device and a control unit. The control unit is programmed to execute steps including: determining if a predetermined condition for ignition timing retardation control; calculat... | 05/31/2005 |
| 6847882 | Misfire detection system and method of median filtering A processor having an embedded median filter routine, a method of median filtering using a vehicle's CPU, and a misfire detection system for an internal combustion engine with crankshaft acceleration detection means for determining crankshaft acceleration values. In... | 01/25/2005 |
| 6827062 | Ignition timing control apparatus for internal combustion engine An ignition timing control apparatus for an internal combustion engine having a plurality of cylinders, wherein operation of the engine is switchable between a partial-cylinder operation, which operates some of the cylinders, and an all-cylinder operation, which ope... | 12/07/2004 |
| 6745749 | Method for adjusting adaptive programme maps of an adaptive knock control in an internal combustion engine and a method for adjusting the knock control in said engine Proposed is a method for adjusting an adaptive characteristics map of an adaptive engine-knock control system and a method for adaptively controlling engine knock, the adaptive characteristics map being defined by at least one operating parameter, the adaptive chara... | 06/08/2004 |
| 6735514 | Control device for a vehicle engine A control device for a vehicle engine includes a memory unit for storing engine configuration parameters, a processing unit for sending control signals to the engine in accordance with the configuration parameters, and an input/output unit connectible to an external... | 05/11/2004 |
| 6722343 | Knock control device for an internal combustion engine Based on an ionic current intensity determined by ionic current intensity learning means for determining the ionic current intensity based on an output from an ionic current detection circuit, at least one of a comparison reference value of a comparison reference va... | 04/20/2004 |
| 6701894 | Knocking control apparatus for internal combustion engine The decision period in which an output of a knock sensor is extracted is set by a setting unit in response to an output of a crank angle sensor. The set decision period is stored in a storing unit and is changed by a changing unit 14 to contain the output... | 03/09/2004 |
| 6688286 | Knock control apparatus for engine A knock control apparatus for engine has a knock sensor for detecting vibrations of the engine. The knock control apparatus determines an occurrence of knock by using at least one of a statistical process, a waveform process and a FFT process. The knock c... | 02/10/2004 |
| 6612283 | Fuel injection method A fuel injection method for an internal combustion engine, an injection being implemented either in homogeneous normal operation or in inhomogeneous stratified operation. In doing so, a characteristic value for knock is detected in at least one cylinder o... | 09/02/2003 |
| 6581570 | Method for controlling the knocking of an internal combustion engine and a corresponding device A method for knock control of an internal combustion engine, in which values are provided by an adaptive characteristics map for retarding an ignition angle is proposed, the values of the adaptive characteristics map being assigned to at least one operati... | 06/24/2003 |
| 6446601 | Ignition control method A method for ignition control is described in which the load gradient is determined. The load gradient is compared with a first specifiable dynamic threshold and the ignition control variable is additively retarded by application of an adaptable dynamic d... | 09/10/2002 |
| 6283093 | Method and apparatus for determining the ignition angle for an internal combustion engine with adaptive knocking A method for determining the ignition angle for an internal combustion engine with adaptive knocking control, in which the occurrence of knocking is reduced by a controlled adjustment of the ignition angle in the retarded direction. The current values for... | 09/04/2001 |
| 6247448 | Closed loop spark control method and system utilizing a combustion event sensor to determine borderline knock A method and system to determine the borderline spark timing for a given speed and load of a given cylinder and control spark timing relative to that borderline spark timing to maintain the torque/efficiency of the engine. The system measures combustion r... | 06/19/2001 |
| 6240900 | Individual knock threshold A method is provided for controlling knock in an internal combustion engine. The method utilizes an adaptive control scheme to tailor knock thresholds to the current engine operating conditions, as well as to identify the cylinder in which the knocking co... | 06/05/2001 |
| 6152105 | Idle speed control device for engine An engine control device has an idle speed control of an engine by an ignition timing control and an idle speed control by air-by-fuel ratio feedback. This engine control device detects roughness caused by a torque change on the basis of a change in angul... | 11/28/2000 |
