Class 123/395 - Open loop condition responsive

Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter in which speed regulating means responds
No. of patents: 30
Last issue date: 05/06/2008

Number	Title	Issue Date
7367864	Method for controlling accessories of a motor vehicle A method and system for controlling secondary assemblies of a motor vehicle, the motor vehicle having at least one deactivatable secondary assembly which generates a loss torque are provided. The method includes determining the current total loss torque acting on th...	05/06/2008
7363912	Fuel injection controller for engine A fuel injection controller calculates a difference between a rotation speed fluctuation amount of an engine in the case where an injection for learning is performed and the rotation speed fluctuation amount in the case where the injection for the learning is not pe...	04/29/2008
7287515	Engine fuel control system A fuel control method and system is provided for delivering fuel to an engine that employs an engine controller that is configured to the fuel injection quantity delivered to the engine. The engine controller is configured to: calculate a fuel injection quantity bas...	10/30/2007
7163000	Engine control device An engine control device can include a throttle valve for adjusting an amount of air supplied to an engine, operation amount detecting sensors for detecting an operation amount of a throttle lever, a motor for driving the throttle valve between open and closed posit...	01/16/2007
7121258	Electronic throttle control device Intake throttle valves 21a to 21d disposed on the intake pipes 15a to 15d for each cylinder of a multi-cylinder engine 10 are provided with motors 20a to 20d for controlling v...	10/17/2006
7051705	Control system parameter monitor A control system parameter monitor determines a difference between a desired and estimated or measured parameter value, applies a weighting factor to the difference, and selects a control strategy based on the weighted difference. The weighting factor generally refl...	05/30/2006
7049729	Amplifier converting charge signal A positive charge of a sensor element is charged in a signal converting circuit, is converted into a positive voltage, and is outputted. When the polarity of the charge of the sensor element is inverted to the negative and an output of the signal converting circuit ...	05/23/2006
7044105	Methods and device for controlling an internal combustion engine A first method is for determining a variable, which characterizes a fuel injection, in an internal combustion engine of a motor vehicle in a hot-start situation wherein fuel is injected directly into at least one combustion chamber from a high-pressure region of a f...	05/16/2006
7032582	Injection control system of internal combustion engine An electronic control unit (ECU) of an injection control system of an internal combustion engine measures an engine rotation speed in a period from a time point when an exhaust valve opens to a time point when a top dead center of a next cylinder is detected after a...	04/25/2006
7013862	Method for operating an internal combustion engine The invention concerns a method for operating an internal combustion engine (1, 18) having a plurality of combustion chambers (4), in the case of which the combustion chambers (4) are charged with fuel and air or with a fuel/air mixture. In orde...	03/21/2006
6990404	Vehicular controller A vehicular engine control unit has multi-CPU configuration. A main CPU executes a control processing subject to a monitoring processing and transmits monitoring data to a sub-CPU. The sub-CPU executes the monitoring processing based on the received monitoring data....	01/24/2006
6953023	Acceleration pedal interpretation when engine torque is limited A method for controlling a multi-cylinder internal combustion engine having electronically controlled airflow comprising limiting a currently available maximum engine torque below maximum torque based on a limited torque output condition, the limited torque output c...	10/11/2005
6935308	Operation control device of multi-cylinder engine An operation control device of a multi-cylinder engine having a long life and low power consumption is superior in acceleration/deceleration follow-up characteristic. Individual cylinder intake pipes 15a to 15d of a multi-cylinder ...	08/30/2005
6928982	Controlling engine charge dilution for fuel efficiency Fuel consumption in a vehicle engine is reduced by varying charge dilution in an intake manifold of the engine to maintain a pressure in the intake manifold within a predetermined range. Pumping work performed by engine cylinders is reduced, which reduces fuel consu...	08/16/2005
6915780	Combustion pressure data collection system for multi-cylinder engine A combustion pressure data collection system for a multi-cylinder engine includes a cylinder pressure sensor, an amplifier unit, and a channel switching unit. The cylinder pressure sensor directly detect a combustion pressure of respective cylinders, the amplifier u...	07/12/2005
6907861	Injection quantity control device of diesel engine A fuel injection control device of a diesel engine performs a learning injection during a no-injection period, in which a command injection quantity is zero or under. A difference between a variation in the engine rotation speed in the case where the learning inject...	06/21/2005
6889653	Engine torque control apparatus An engine torque control apparatus for controlling the output torque of an engine (60) connected to a transmission (40) in a vehicle has a temperature sensor (55) for detecting the temperature of oil used by the transmission (40), and a c...	05/10/2005
6886530	Method and device for operating a drive engine of a vehicle A method and an arrangement for operating a drive motor of a vehicle are suggested. A resulting desired torque for controlling the drive motor is pregiven in dependence upon the driver command torque and additional desired torque quantities. To limit the resulting d...	05/03/2005
6883493	Method and device for operating the drive motor of a vehicle A method and an arrangement for operating a drive unit of a vehicle are suggested. Starting from a driver command torque which is converted into a resulting desired torque while considering additional torques, a correction of the resulting desired torque is undertak...	04/26/2005
6877471	Engine control device A engine control device includes a failure judgment means for making at least a failure judgment of an intake pipe pressure sensor. The failure judgment means includes a first data processing for outputting an estimated intake pipe pressure signal, a second data pro...	04/12/2005
6830027	Control system for internal combustion engine A control system for an internal combustion engine having a plurality of cylinders and a switching mechanism for switching between an all-cylinder operation in which all of the cylinders is operated and a partial-cylinder operation in which at least one of the plura...	12/14/2004
6814035	Intake quantity control apparatus of internal combustion engine An intake quantity control apparatus for an internal combustion engine which controls a valve opening characteristic and intake pressure to control the intake quantity more suitably is provided. The apparatus includes a valve opening characteristic control unit for ...	11/09/2004
6796287	Internal combustion engine utilizing motor to change over compression ratio and control method of internal combustion engine An internal combustion engine is capable of changing a compression ratio according to an output torque. A motor is connected with an output shaft of the internal combustion engine to transmit torque to and from the output shaft. The internal combustion engine detect...	09/28/2004
6779508	Control system of internal combustion engine A control system of an internal combustion engine includes a timing changing unit that changes opening and closing timing of an intake valve relative to rotation of an output shaft of the engine, a working angle changing unit that changes a working angle of the inta...	08/24/2004
5537854	Acoustic natural gas fuel sensor A gaseous fuel analyzer having a flow through chamber equipped with sound producing means at one end and sound receiving means at the other for measuring an acoustic property of fuel flowing through the chamber and for numerically relating the acoustic pr...	07/23/1996
4862854	Control systems for vehicle engines A control system for a vehicle engine comprises a first detecting device for detecting a controlled variable on an accelerator, an engine ouput adjusting device, such as a throttle valve, a second detecting device for detecting a situation wherein a vehic...	09/05/1989
4831985	Throttle control system A throttle control system for a vehicle of the type including a throttle body and a throttle valve mounted within the throttle body and controlling the delivery of fuel and/or air to the engine of the vehicle. The invention control sytsem includes a rotar...	05/23/1989
4640245	Method of controlling an engine mounted on a construction vehicle A method of controlling an engine mounted on a construction vehicle comprising the steps of reducing the rotation of the engine to a primary number of revolutions per minute, which is in the vicinity of the rated number of revolutions per minute of the en...	02/03/1987
4462268	Anti-twist throttle lever A carburetor having a throttle valve and throttle shaft is shown provided with a throttle shaft lever which has a U-shaped portion carrying a linkage connecting member effective for connection to associated throttle actuating linkage; a sleeve-like spacer...	07/31/1984
4452203	Three position diesel engine intake air throttling system An intake air throttling system for a diesel engine comprising an air intake passage. The system includes a throttling valve mounted in the air intake passage so as to selectively throttle air flow through it. This throttling valve can be positioned to at...	06/05/1984

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Class 123/395 - Open loop condition responsive