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7428459 Apparatus for controlling an engine using a cam signal  
In an apparatus for controlling an engine, an abnormality determining unit determines whether the crank signal is abnormal based on a state of a input signal for an interval measuring unit. The...
7040296 Engine start control system and a method thereof  
An engine start control system provides at least one sensor detecting engine operating conditions, an injector, and a control unit. The control unit controls the injector based on signals of the at...
6990960 Engine air amount prediction based on engine position  
A system and method to predict engine air amount for an internal combustion engine is described. Included is a method to predict a change in engine air amount based on engine position. This method...
6493628 Engine control unit having frequency-multiplied signal generating function  
In an engine control unit, a crank signal is generated as a pulse train of every predetermined angle interval corresponding to rotation of a crankshaft of an engine. An edge time measuring counter...
6328018 Control apparatus for controlling internal combustion engine  
The present invention provides a control apparatus for controlling an internal combustion engine that enables preferable acceleration in response to the running status of the internal combustion...
6253145 Synchronization of internal combustion engine  
The present invention relates to the synchronization of an internal combustion, four-stroke engine during engine startup. The engine comprises a number of cylinders with pistons linked to a...
6111413 Digital degree wheel for testing ignition timing  
A digital degree wheel is provided including an engine sensor mounted to at least one of a camshaft, distributor and crankshaft of a vehicle for generating an activation signal after the detection...
5806488 Electronic engine timing  
An electronic timing system for producing precise timing control signals to the fuel injectors and ignition coils of an internal combustion engine. The system includes a cylinder cycle marker...
5663933 Meter circuit  
The present invention relates to an electronic meter circuit for a time comparison measurement between two successive periodic events with which the signal time ratios between two times two...
5651347 Fuel supply apparatus for internal combustion engine  
According to the present invention, a fuel supply apparatus includes a fuel pump, a delivery pipe to distribute the fuel to each injector of the engine by receiving fuel supply by the fuel pump, a...
5481462 Apparatus for determining an altitude condition of an automotive vehicle  
An altitude determining apparatus for an automotive vehicle includes a calculating part for determining a reference flow rate based on a throttle angle of a throttle valve and an engine speed of an...
5284114 Apparatus and method for controlling an internal combustion engine  
An apparatus and method for controlling an internal combustion engine can perform exact timing control for ignition timing, fuel injection timing and the like in an inexpensive manner. A crank...
5268843 Engine misfiring determining device  
The device for monitoring the combustion state of each cylinder is provided in a multi-cylinder engine and determining if combustion abnormality occurs in the cylinder. The misfiring determining...
5263450 Control apparatus for a multi-cylinder internal combustion engine  
A control apparatus can electronically control the operation of a multi-cylinder engine in a precise manner. A first signal generator 1 and a second signal generator 2 are provided on a camshaft...
5233964 Universal control of a plurality of fuel injectors for an internal combustion engine  
Auxiliary control is used to reduce the processing load of an engine control computer by directly controlling a fuel injection system of an internal combustion engine. After initial set up, an...
5063898 Pulsed hydraulically-actuated fuel injector ignitor system  
The invention is a pulsed, hydraulically actuated fuel injector ignitor system for an internal combustion engine with combustion chambers and a fuel injector, comprising an outer shell containing a...
4991101 Data communication control system  
A data communication control system includes first and second control units each having a microcomputer, the second control unit carrying out a first interrupt processing which starts in accordance...
4984167 Control apparatus and method for an internal combustion engine  
In a control apparatus for an internal combustion engine for receiving outputs of a crank angle sensor, air flow sensor, etc., calculating control values from these outputs using a microcomputer to...
4964050 Method of controlling electrical devices of internal combustion engines  
A method of controlling a plurality of electrical devices which control an operation of an internal combustion engine wherein an operation period of time required for each of the electrical devices...
4955340 Electronic controller for compression-actuated fuel injector system  
In an internal combustion engine with combustion chambers (CC'S) (538), a fuel injector (FI) comprising an outer shell (628) containing a fuel supply cavity (FSC) (530) having an openable valve...
4911123 Electronic controller for compression actuated fuel injection system  
In an unthrottled fuel injection type internal combustion engine, a controlled injection logic to generate a first pulse train whose frequency varies with the accelerator position, N cylinder...
4892077 Fuel injection control method for internal combustion engines  
Fuel injection is started through a first one of fuel injection valves, and a time counter counts a period of time elapsed from the start of fuel injection through the first one valve. Fuel...
4862369 Electronically-controlled fuel injection system  
An electronically-controlled fuel injection system having a synchronous counter which receives main injection time data corresponding to an amount of fuel to be injected synchronously to engine...
4855919 Method and circuitry for the driving of driver stages for functions of internal combustion engines for automotive vehicles especially for fuel injection or ignition  
In a method for the driving of driver stages for operations of automotive internal combustion engines, for instance for fuel injection, including the use of timer-controlled output signals of a...
4838022 Control system for controlling DC control motor which controls operation condition of internal combustion engine  
A control system for controlling a DC control motor which controls an internal combustion engine to follow-up a target value varying continuously depending on the operation condition of the engine,...
4827718 Control system for controlling actuator to control operation of internal combustion engine  
A control system for controlling an actuator which controls operation of an internal combustion engine in compliance with a target value varying continuously depending on the operation condition of...
4711200 Automotive-engine fuel supply system  
A fuel supply system controls the amount of fuel to form a stoichiometric combustible mixture during a normal operating condition of the engine. The mixture is enriched during a transient condition...
4696276 Method for influencing the metering of fuel to an internal combustion engine  
The invention is directed to a method for influencing the metering of fuel to an internal combustion engine, wherein the amount of fuel to be delivered to the engine is varied at least in...
4617899 Fuel injection control device for internal combustion engine  
A fuel injection control device for an internal combustion engine, which enables injection of fuel into separate cylinders to be controlled by only one timer counter, without reference to the...
RE32140 Electronic engine control apparatus  
An electronic engine control apparatus in which the timing of the ignition and the fuel injection are calculated from a negative pressure in the intake manifold of the engine or the flow rate of...
4574761 Electronic fuel injection control system for internal combustion engine  
In an electronic fuel injection control system for an internal combustion engine, a first integration circuit is responsive to an angular signal with a time period in inverse proportion to the...
4530332 Fuel control system for actuating injection means for controlling small fuel flows  
A fuel control system for actuating injection means for controlling small fuel flows is described in a microprocessor based engine control system. The short time duration fuel pulses are sensed and...
4506338 Method and apparatus for judging the state of operation of an intake passage pressure detecting device for an engine  
According to the method of the present invention for judging the state of operation of an intake passage pressure detecting device for an engine, first at the time of starting control the intake...
4491114 Fuel injection means for an internal combustion engine of an automobile  
A fuel injection means for an internal combustion engine of an automobile is disclosed which comprises a pulse length determination circuit which receives a driving condition signal and develops a...
4466406 Regulating device for control variables of an internal combustion engine  
A regulating device is proposed for control variables of an internal combustion engine, in particular for the fuel metering signal and the ignition signal, which has an intervention capability for...
4462373 Air-to-fuel ratio control method and apparatus  
A method and apparatus for controlling an air-to-fuel ratio of an internal combustion engine in which the air-to-fuel ratio is maintained within a predetermined control width or range even if one...
4454845 Data sampling system for electronic engine controllers  
An electronic engine controller is disclosed for controlling selected operations of an internal combustion engine based upon engine operating parameters. The engine controller comprises a load...
4428349 Ignition and fuel control system for internal combustion engines  
An electronic ignition and fuel control system is provided for internal combustion automotive vehicle engines which are of the spark ignition type. The ignition and fuel control system of this...
4397282 Fuel injection systems for internal combustion engines  
A fuel injection timing system for a compression ignition engine makes use of a read only memory programmed to provide a digital output representing the time or shaft angle when injection is...
4393845 Means for improving the efficiency of an internal combustion engine  
Means for improving the fuel economy and hence efficiency of an internal combustion engine having electronic fuel injection where the amount of fuel delivered to the engine is proportional to the...
4387684 Ignition advance circuit with sensor inputs  
Sensor inputs as from an engine load sensor alter the frequency of a pulse providing circuit, the output of which adds counts to those counts provided as a function of engine velocity. The total...
4380800 Digital roughness sensor  
An engine roughness sensor for generating speed normalized digital roughness signals indicative of the variations in magnitude between successive torque impulses imparted to the engine's crankshaft...
4372269 Internal combustion engine  
A spark-ignition engine has adaptive adjustment of the size of its fuel rations in dependence on misfires in the engine. A misfire is identified as an abnormal deficiency in energy conversion, this...
4367530 Control apparatus for an internal combustion engine  
A control apparatus for an internal combustion engine includes a plurality of sensors for producing signals indicative of operating conditions of the engine, an input/output unit adapted to receive...
4359992 Method of controlling fuel supply to internal combustion engine  
The calculation of an adjustment value, which is determined by the concentration of oxygen in the exhaust gas, the opening of a throttle valve provided in an intake air passage to the engine, the...
4355614 Electronic fuel injection control apparatus of an internal combustion engine  
Small change in the period of a crank-angle signal which is generated at every crankshaft rotation of a predetermined angle is not faithfully reflected to a false crank-angle signal which is used...
4354239 Fuel injection control system for an internal combustion engine  
A fuel injection valve of an internal combustion engine is opened at a predetermined crank angle position. A counter starts to count pulses from a clock pulse signal generator at the predetermined...
4347571 Integrated closed loop engine control  
An integrated closed loop engine control is disclosed in which the fuel delivery and timing functions of the engine are closed about a measurement of the engine's instantaneous rotational velocity....
4344140 Closed loop engine roughness control  
A closed loop engine roughness fuel control for an internal combustion engine operative to maintain the operation of the engine at a predetermined roughness level is disclosed herein. The control...
4307452 Fuel consumption measuring apparatus  
A fuel consumption measuring apparatus for an internal combustion engine equipped with an electromagnetic fuel injection valve, comprising a fuel injection control means which calculates a proper...
Matches 1 - 50 out of 98 1 2 >