Bizarre Patents
Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7963269 | Ignition timing controlling apparatus and ignition timing controlling method for internal combustion engine A 90° integrated value calculating unit of an engine ECU calculates a 90° integrated value obtained by integrating a magnitude. A calculating unit calculates a knock magnitude by dividing 90° integrated value by a BGL. A value obtained by subtracting a standard d... | 06/21/2011 |
| 7658178 | Engine event-based correction of engine speed fluctuations Ignition timing for a combustion engine may be controlled by determining the roughness of current engine operation, comparing the determined roughness with a control roughness to determine if the determined roughness is within a threshold limit of the control roughn... | 02/09/2010 |
| 7607416 | Engine control device To improve power performance while avoiding or suppressing surging, an engine control device comprises a VVT mechanism for varying the open/close timing of an intake valve, and the occurrence of surging is determined by comparing an engine rotation variation width w... | 10/27/2009 |
| 7404391 | Method and device for operating an internal combustion engine A method for controlling an internal combustion engine calculates the generated internal torque for each cylinder on the basis of the signal generated by an angle of rotation sensor for detecting the angle of rotation of the crankshaft, so that a rapid and precise r... | 07/29/2008 |
| 7363910 | Ignition circuit having a high-energy spark for an internal combustion engine An ignition circuit is for an internal combustion engine in a handheld portable work apparatus. A combustion chamber (4) is configured in the cylinder (3) of the engine (1) which is delimited by a piston (5) driving a crankshaft (7... | 04/29/2008 |
| 7263872 | Method for determining the energy of a knock signal for an internal combustion engine The invention relates to a method for determining the energy (KNKE) of the knock of an internal combustion engine, using an analog signal supplied by a sensor fixed to the engine. The inventive method includes the following steps: a) the analog signal is shaped, b) ... | 09/04/2007 |
| 7222011 | Engine and driveline torque transfer device control A starting clutch control includes an engine control state and a slip control state. The engine and slip control states include feedforward and driveline damping control terms. The engine state control may further include an engine speed control term. The slip contr... | 05/22/2007 |
| 7200487 | System and method for processing an accelerometer signal to assist in combustion quality control in an internal combustion engine A method for processing an accelerometer signal associated with the combustion process in an operating internal combustion engine, the method comprising the steps of measuring an accelerometer signal across a window of selected crank angle degrees during a cycle of ... | 04/03/2007 |
| 7191760 | Ignition control method and ignition control device for two-cycle internal combustion engine An ignition control device for a two-cycle internal combustion engine that controls an ignition timing for inhibiting detonation while inhibiting an increase in an exhaust pipe temperature, including: map storing means for storing a map that provides a relationship ... | 03/20/2007 |
| 7179197 | Clutch state determining device If a user presses a clutch pedal to perform gear-shifting operation while a vehicle is traveling, a clutch disc, which has been engaged with a flywheel rotating with an engine, is brought to partial clutch engagement and slides on an end surface of the flywheel to g... | 02/20/2007 |
| 7171299 | Driveline clunk management system A system for reducing clunk in a driveline of a vehicle having an engine comprises a torque-based module that generates a torque request, a filter that receives the torque request from the torque-based module and that selectively modifies the torque request to reduc... | 01/30/2007 |
| 7140351 | Method and device for operating an internal combustion engine A method and a device for operating an internal combustion engine allow an optimal restriction of the ignition angle. In this context, a limit value for an ignition angle is specified as a function of an operating point of the internal combustion engine. The limit v... | 11/28/2006 |
| 7137382 | Optimal wide open throttle air/fuel ratio control This feature of the present invention comprises a method and apparatus which uses an ionization signal to optimize the air to fuel ratio AFR of the combustion mixture when the engine is operated at wide open throttle (WOT). This feature of the present invention opti... | 11/21/2006 |
| 7096722 | Method and apparatus for detecting combustion instability in continuous combustion systems An apparatus and method to sense the onset of combustion stability is presented. An electrode is positioned in a turbine combustion chamber such that the electrode is exposed to gases in the combustion chamber. A control module applies a voltage potential to the ele... | 08/29/2006 |
| 7073485 | Engine management An engine management system for an internal combustion engine, which has at least one cylinder pressure sensor and at least one engine actuator, includes a data processor arranged to receive and process cylinder pressure data from the cylinder pressure sensor and th... | 07/11/2006 |
| 7055502 | Single cylinder engine and vehicle provided with the same A single cylinder engine includes an engine body having a cylinder and a combustion chamber, an intake opening that faces the combustion chamber, and an intake passage in communication with the combustion chamber through the intake opening, a piston provided in the ... | 06/06/2006 |
| 7048670 | Engine control method and device for a vehicle An engine speed control that avoid undesirable transmission conditions such as clutch chattering. This is done by sensing actual conditions, which are likely to result in the undesirable transmission conditions such as clutch chattering and only changing the engine ... | 05/23/2006 |
| 7027910 | Individual cylinder controller for four-cylinder engine A generic technique for the detection of air-fuel ratio (or torque) imbalances in a 4-cylinder engine equipped with either a production oxygen sensor or a wide-range A/F sensor (or a crankshaft torque sensor) is developed. The method is based on a novel frequency-do... | 04/11/2006 |
| 7010460 | Reciprocating engine cylinder contribution tester and method Engine cylinder contribution analysis is provided. An engine cylinder contribution tester includes a displacement measurement device and a signal analyzer. The displacement measurement device detects engine block movements or displacement relative to a fixed positio... | 03/07/2006 |
| 6993427 | Combustion state estimating apparatus for internal combustion engine A combustion state estimating apparatus for estimating the state of combustion in an internal combustion engine includes an angular acceleration calculator that calculates a crank angle acceleration, and a combustion state estimator that estimates the state of combu... | 01/31/2006 |
| 6975934 | Control system for correcting a torque variation of an engine The present invention provides a control system for an internal combustion engine for detecting a torque variation based on a rotational speed of the engine and suppress the torque variation. The system includes a detector for detecting a rotational speed of the eng... | 12/13/2005 |
| 6959688 | Method for monitoring engine order forcing frequency A method of monitoring engine order forcing frequency comprises the steps of: selecting at least one engine order for an engine, the engine order being related in a known manner to one or more engine vibration responses generated b... | 11/01/2005 |
| 6953024 | Method of controlling combustion in a homogeneous charge compression ignition engine A method of controlling combustion in an homogenous charge compression ignition engine through indirect mechanisms. The method utilizes a predictive model so that combustion can be controlled over a wide range of operating conditions while maintaining optimum operat... | 10/11/2005 |
| 6922627 | Detection of engine rotation speed in spark ignition internal combustion engine A spark ignition internal combustion engine (2) performs ignition within a fixed ignition crank angle range. The operation control device comprises a programmable controller (1) and a unit crank angle sensor (9) outputting a unit crank angle sig... | 07/26/2005 |
| 6918288 | Method for engine misfire detection in multi-cylinder internal combustion engines with multi-cylinder spark ignition The invention relates to a method for detecting combustion misfires in multi-cylinder internal combustion engines having several simultaneously igniting cylinders wherein, for each crankshaft rotation, rough running values are determined by measuring segment times, ... | 07/19/2005 |
| 6915783 | Method for the damping of mechanical vibrations in the drive train of an internal combustion engine A method for the damping of mechanical vibrations in the drive train of an internal combustion engine by detection of vibration excitations in the drive train, and adjustment of the ignition angle of the internal combustion engine in the event of the occurrence of a... | 07/12/2005 |
| 6907341 | Misfire detector A misfire detector is provided that is accurate even in the case of a disturbance due to causes such as driving on a rough road. The misfire detector is equipped with a crankshaft revolution detector to measure the time period required for the crankshaft of an inter... | 06/14/2005 |
| 6898510 | Method of controlling an internal combustion engine In a method of controlling an internal combustion engine, at least one operating variable is controlled, a pre-control ignition timing efficiency is formed as a function of operating parameters of the engine and/or external intervention measures, and the pre-control... | 05/24/2005 |
| 6892702 | Ignition controller A number of embodiments of improved engine system control method and apparatus based on operator demand and rate of change in demand that reduce not only the number of components but also decrease the complexity of the electronic system without requiring a throttle ... | 05/17/2005 |
| 6876919 | Cylinder specific performance parameter computed for an internal combustion engine A method for estimating a cylinder specific performance parameter for a specific cylinder of an internal combustion engine for each firing attempt, which relies on production sensors commonly equipped onboard production vehicles, is disclosed. ... | 04/05/2005 |
| 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 |
| 6832598 | Anti-knocking device an method A method and apparatus that permit anti-knock control without the use of separate knock detectors as well as controlling the basic ignition timing from the output of a single engine speed sensor. ... | 12/21/2004 |
| 6814054 | Method for operating an internal combustion engine, and a corresponding device A method for operating an internal combustion engine and a corresponding device are described in which a combustion of a fuel in a fuel-air mixture introduced into a cylinder occurs in at least one cylinder. At least one adjusting device is used to influence at leas... | 11/09/2004 |
| 6805100 | Combustion control apparatus and combustion control method for in-cylinder injection internal combustion engine With regard to a stabilization control which is executed while compression stroke injection is executed in an engine warming-up process, an execution period of the stabilization control is limited to a period until when an elapsed time since an engine is started rea... | 10/19/2004 |
| 6799556 | Ignition controller for internal combustion engine The ignition controller includes a crank angle sensor of an internal combustion engine, a cam sensor, and a control unit for controlling the ignition of each cylinder on the basis of a crank angle signal and a cam signal. Upon detecting a change in the engine speed ... | 10/05/2004 |
| 6796288 | Method for controlling incidences of combustion in an unloaded internal combustion engine A method for controlling incidences of combustion in an unloaded internal combustion engine of a vehicle. The method includes, determining a load-dynamics threshold, detecting an unloaded operating state of the internal combustion engine, detecting an incidence of t... | 09/28/2004 |
| 6758190 | Method and device for controlling an output variable of a drive unit in the starting phase A method and a device for controlling an output variable of a drive unit in the starting phase is described. A controller is provided, regulating the actual value of at least one output variable to a setpoint variable of this output variable which is specified as a ... | 07/06/2004 |
| 6742501 | Method of estimating inertia moment of engine, method of estimating engine load, and method of and apparatus for controlling engine An inertia-related engine speed fluctuation is computed when the engine is rotated without ignition. A load-related engine speed fluctuation is computed when the engine is rotated with ignition and combustion. The inertia-related engine speed fluctuation is indicati... | 06/01/2004 |
| 6742502 | Engine control method and apparatus An improved method and system for the control of an engine system such as the spark timing. The control senses the speed variations either during a portion of a complete cycle and a complete cycle and/or from cycle to cycle in order to determine the load on the engi... | 06/01/2004 |
| 6732709 | Dynamic engine timing control A method and apparatus for controlling timing of an internal combustion engine having a piston located in a cylinder. The method and apparatus includes determining a first angular position of a crankshaft at a first location along a longitudinal axis of the cranksha... | 05/11/2004 |
