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| Number | Title | Issue Date |
| 7270095 | Apparatus and method for controlling internal combustion engine An engine body includes a plurality of cylinders, and the intake valve lift-amount of each cylinder is changed based on the engine operating state. A pressure sensor continuously detects the intake pressure, which is the pressure in an intake pipe, to detect the int... | 09/18/2007 |
| 7222684 | System, apparatus, and method for providing control of a toy vehicle A system, apparatus, and method for providing a soft-start for a toy vehicle configured to be operated by a person. The method includes receiving a throttle signal operable to induce motion via a motor operating as a drive mechanism of the toy vehicle. A transition ... | 05/29/2007 |
| 7168410 | Idle speed controller for internal combustion engine An idle speed controller for an internal combustion engine provided with an intake variable valve timing mechanism for varying valve timing and a variable working angle for varying a valve working angle of an intake valve. The controller performs idle speed control.... | 01/30/2007 |
| 7161787 | Low power solenoid driver circuit The present invention provides a system and method for controlling a solenoid that ensures accurate timing between the enabling of the driving circuit and the activation of the solenoid, while simultaneously providing a two energy level driving scheme to reduce powe... | 01/09/2007 |
| 7156073 | Idle speed control apparatus in throttle body for single cylinder A single idle air control passage (5) open toward a suction air passage (2a) downstream from a throttle valve (4), a starter passage (6) and an air screw passage (7) independently branched from an upstream side passage (5... | 01/02/2007 |
| 7150263 | Engine speed control apparatus; engine system, vehicle and engine generator each having the engine speed control apparatus; and engine speed control method An engine speed control apparatus includes a throttle valve for adjusting the amount of an intake air sucked into an engine, a drive unit for driving the throttle valve, and a control unit for generating a PWM signal for driving the drive unit. The control unit incl... | 12/19/2006 |
| 7040225 | Method for reducing vibrations in rotating components Undesirable bending vibrations in at least one rotating component are reduced. An undesirable vibration is counteracted by the use of at least one actuator. A required sequence of signals to be applied to the actuator and/or an intensity level of those signals is ba... | 05/09/2006 |
| 7017548 | Engine controller An unstable idling state immediately after engine start is stabilized. The difference between a target idling engine speed corresponding to the cooling water temperature and an actual engine speed is integrated. The ignition timing is changed toward advance or retar... | 03/28/2006 |
| 7017483 | Method and device for reducing vibrations in rotating components Undesirable bending vibrations in at least one rotating component are reduced. An undesirable vibration is counteracted by the use of at least one actuator. A required sequence of signals to be applied to the actuator and/or an intensity level of those signals is ba... | 03/28/2006 |
| 7007645 | Method and apparatus for controlling CVVT of an engine Controlling of a CVVT can be improved by controlling the CVVT based on an estimated oil temperature, the estimated oil temperature being calculated on the basis of a coolant temperature at starting of the engine and a period of time that has elapsed after the starti... | 03/07/2006 |
| 6971358 | Intake system for internal combustion engine and method of controlling internal combustion engine An intake system has a tubular intake manifold, having an end connected to an intake port of an engine and an opposite end connected to a throttle body that includes a throttle valve. The intake system also has a bypass passage, connected to the intake manifold down... | 12/06/2005 |
| 6718941 | Engine fuel control device and control method for requested idle air quantity An engine fuel control device includes an idle speed control valve that is disposed in a bypass passage that bypasses a throttle valve, a starting phase determination means that determines whether the engine is in a pre-start phase or a post-start phase, a first ope... | 04/13/2004 |
| 6655350 | Idle speed control system and control method for internal combustion engine An idle speed control system of an internal combustion engine controls a speed of the internal combustion engine during idling. In its attempt to shift the idle speed control after the internal combustion engine has been started from an open-loop control ... | 12/02/2003 |
| 6523521 | Hot water type first idle control device A hot water type first idle control device includes a heating chamber through which cooling water for an engine is allowed to flow, a wax case heated by the heating chamber, and a device housing in which the wax case is accommodated and retained. In the h... | 02/25/2003 |
| 6415766 | Engine idle control system An engine idle control system includes an improved construction for changing an aimed idle engine speed, which is preset by the manufacturer therein, in response to various needs of a user. The engine has a main passage having a throttle valve therein and... | 07/09/2002 |
| 6247446 | Electronic engine control for regulating engine coolant temperature at cold ambient air temperatures by control of engine idle speed An electronic engine control for reducing, and ideally eliminating, accumulation of products of incomplete combustion that result from cold ambient conditions acting on the engine and that otherwise might ultimately affect engine operation before the usef... | 06/19/2001 |
| 6176218 | Stabilizing function for torque based idle control A method for stabilizing the idle of an engine for a motor vehicle includes determining an engine rotational speed, modifying the engine rotational speed to define a friction engine speed, estimating a mechanical friction loss as a function of the frictio... | 01/23/2001 |
| 6109238 | Idling-engine-speed control method and controller therefor An idling-engine-speed control method and apparatus capable of stabilizing an engine speed before completion of warming-up even if cooling water temperatures greatly change compared to the voltage change of water temperature sensor outputs under the trans... | 08/29/2000 |
| 6085723 | Apparatus and methods for controlling idling speed of an internal combustion engine by reducing torque fluctuations Apparatus and methods are disclosed for controlling the idling speed of an internal combustion engine by reducing torque fluctuations experienced by the engine. In the disclosed apparatus, an electric machine is coupled to the drive shaft of an internal c... | 07/11/2000 |
| 6021754 | Method and apparatus for dynamically calibrating a fuel injector The present invention is adapted to provide a method and apparatus for dynamically determining an individualized fuel command for each fuel injector connected to an engine. In the preferred embodiment the method includes delivering a baseline fuel command... | 02/08/2000 |
| 6019085 | Throttle valve control device for internal-combustion engine A throttle valve control device in an internal-combustion engine having an electronically-controlled throttle valve is provided for calculating a final target opening based on an engine operation state, which includes an accelerator depression amount, and... | 02/01/2000 |
| 5934248 | Air-fuel ratio controller for internal combustion engine An air-fuel ratio controller for an internal combustion engine, which controller is capable of: properly correcting an air-fuel ratio after a start-up explosion; preventing inconveniences such as occurrence of an engine stall, a decrease in an engine rota... | 08/10/1999 |
| 5806486 | Automative engine idle speed control A system for controlling the idle speed of an automotive engine selects a desired initial idle speed based on a sensed value of at least one engine operating parameter and operates an idle speed module to maintain the engine's idle speed at the desired in... | 09/15/1998 |
| 5720256 | Apparatus and method for controlling idle rotation speed learning of an internal combustion engine When conditions for purging fuel vapor from a canister, and conditions for learning an idle rotation speed materialize together, then purge concentration is computed. If the purge concentration is low, purge is prohibited, and learning is carried out, whi... | 02/24/1998 |
| 5619966 | Method for controlling an internal combustion engine as it enters low-idle speed The speed of an internal combustion engine is monitored during the entry thereof into low-idle speed operation. The engine speed can thereby be slaved to a predetermined reference point value. When a predetermined engine condition occurs which is consider... | 04/15/1997 |
| 5592918 | Intake air volume control device for internal combustion engine An intake air volume control device of an internal combustion engine capable of adjusting the intake air volume pertinently irrespective of a variation in characteristic such as a deterioration in durability, a variation in an engine water temperature or ... | 01/14/1997 |
| 5582148 | Control system for the quantity of air to be inducted into engine This invention relates to a control system for the quantity of air to be inducted, which is suitable for use in controlling the idling speed of an engine, for example, for an automotive vehicle or the like. It is an object of the present invention to perm... | 12/10/1996 |
| 5417192 | Automatic idling-up controlling device of an engine and a method for making the same The present invention discloses an automatic idling-up controlling device of an engine including: a vehicle speed sensing member for sensing a running speed of a vehicle and producing a corresponding signal; an engine coolant temperature sensing member fo... | 05/23/1995 |
| 5415143 | Idle control system and method for modulated displacement type engine An idle control system includes an engine speed determining unit, a unit for determining the number of operating cylinders, a valve stopping unit for stopping the operation of inlet and exhaust valves of some of the cylinders, an idle control parameter ca... | 05/16/1995 |
| 5406919 | Fuel injection system for internal combustion engine A fuel injection system for an internal combustion engine introduces, via an air passage bypassing a throttle valve, a portion of intake air flowing in an induction system of the engine to an area where fuel is injected from a fuel injection valve, so as ... | 04/18/1995 |
| 5400755 | Combustion control system for in-cylinder injection type two-cycle engine The fuel injected two-cycle internal combustion engine having an exhaust control valve and direct cylinder injection. The fuel injection timing and duration are increased at starting over idle and the exhaust control valve, which is normally closed at idl... | 03/28/1995 |
| 5383430 | Rotational speed control apparatus for internal combustion engines A rotational speed control apparatus for internal combustion engines is constructed so that, when drive control of an idling speed control valve is performed based on a reference control quantity of the idling speed control valve, a highland learning valu... | 01/24/1995 |
| 5375574 | Engine idling speed control apparatus An apparatus for controlling the engine idling speed to a target value. The apparatus is arranged to calculate a basic engine output torque required to maintain the engine idling speed at a target value, and a required engine output torque change required... | 12/27/1994 |
| 5365903 | Engine idling speed control apparatus An apparatus for controlling the engine idling speed to a target value. The apparatus is arranged to calculate a target engine idling speed value according to engine operating conditions and a model engine speed based upon the calculated target engine idl... | 11/22/1994 |
| 5320077 | Fuel control system for internal combustion engine A system for exactly detecting any unstable state in which disturbance is caused on the output value of a thermal air flowmeter for measuring intake air flow rate, thereby preventing or promptly suppressing the generation of undesirable states such as a v... | 06/14/1994 |
| 5269272 | Engine idling speed control apparatus An apparatus for controlling the idling speed of an internal combustion engine. The apparatus comprises sensors for producing electrical signals indicative of sensed engine operating conditions including a sensed amount of air permitted to enter the engin... | 12/14/1993 |
| 5235946 | Method of variable target idle speed control for an engine A method of controlling the target idle speed of an internal combustion engine having sensors for monitoring engine coolant temperature, engine speed, and battery voltage.... | 08/17/1993 |
| 5172665 | Idle running control apparatus for internal combustion engine An idle running control apparatus for an internal combustion engine includes sensors for sensing the rotational speed or angular velocity of the engine, the opening degree of a throttle valve and the flow rate of intake air sucked into the engine, respect... | 12/22/1992 |
| 5163398 | Engine idle speed control based upon fuel mass flow rate adjustment An idle speed regulating system is described for an internal combustion engine operating according to a fuel based control strategy, wherein the amount of fuel delivered the engine is determined directly as a function of the demand for engine output power... | 11/17/1992 |
| 5146888 | Idle engine speed control apparatus An idle engine speed control apparatus for a multiple cylinder and multiple throttle valve engine includes a bypass passage and an idle control valve connected to each cylinder for controlling idle engine speed. Idle engine speed at a combustion stroke of... | 09/15/1992 |
