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Class 123/483 - Having plural multivibrators


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter wherein said injector valve control means
No. of patents: 30
Last issue date: 07/05/2005


NumberTitleIssue Date
6912991Method, computer program and control and/or regulating appliance for operating an internal combustion engine, and corresponding internal combustion engine
An internal combustion engine (10), especially of a motor vehicle, is operated with a method wherein the fuel is injected directly into a combustion chamber (12) of the internal combustion engine (10) with at least one injection (36) per ...
07/05/2005
4450815Internal combustion engine control apparatus
An internal combustion engine control apparatus comprises sensors for sensing operation parameters of an internal combustion engine, a control unit for controlling the operation of the internal combustion engine based on the operation parameters sensed by...
05/29/1984
4364363Electronically controlling, fuel injection method for internal combustion engine
According to the present invention, an amount of fuel being supplied to an internal combustion engine during acceleration is controlled in association with a desired value of acceleration (a degree of acceleration) and a temperature of the engine. The amo...
12/21/1982
4331117System and method for controlling engine knock
A closed loop electronic system and method is disclosed for controlling the spark timing and knock condition in each cylinder separately of a spark ignition, multicylinder internal combustion engine....
05/25/1982
4314538Electronic fuel control system including electronic means for providing a continuous variable correction factor
An electronic fuel control system of the type providing fuel delivery controlling signals during the period of time that at least a portion of a controlled signal maintains a preselected relationship with respect to particular value is provided with circu...
02/09/1982
4301780Fuel injection control apparatus for internal combustion engine
An internal combustion engine having a plurality of cylinders is provided with a fuel supply system of a single point injection type, a fuel supply control apparatus controls at least one of operation initiating timing and operating duration of a fuel inj...
11/24/1981
4284050Apparatus for controlling the mixture composition in an internal combustion engine
An apparatus for the open-loop or closed-loop control of the composition of the mixture desired in the combustion chamber of an internal combustion engine, which includes an exhaust gas sensor whose output signal together with other operational parameters...
08/18/1981
4278061Method and apparatus for adjusting fuel injection control
A fuel injection system of an internal combustion engine generates valve-actuating pulses for actuating electromagnetic fuel injection valves. The length, or duration, of these valve actuating pulses is a function of various engine conditions and they are...
07/14/1981
4269157Fuel injection system
A fuel injection system is disclosed for use in an internal combustion engine. The system comprises at least one fuel injection valve, a flow sensor responsive to an intake air flow for developing at its output a pulse signal having a frequency correspond...
05/26/1981
4256075Fuel feed device for engine
A fuel feed device for an engine capable of electronically controlling the fuel feed rate corresponding to the suction air flow rate in the intake passage, comprising an air flow rate detecting device for generating electric signals of frequencies proport...
03/17/1981
4254744Method and apparatus for measuring air quantity in relation to engine speed
First electrical pulses are generated in response to the quantity of air inducted per unit time and second electrical pulses are generated in response to the speed of revolution of an engine crankshaft. A counter is provided which counts the number of sec...
03/10/1981
4232647Control circuit for diesel injection system
A fuel control system for an electronically controlled fuel injected internal combustion engine, whereby fuel is injected into the cylinders for a fixed number of degrees with respect to the crankshaft rotation. A trigger pulse is fed into a tachometer ci...
11/11/1980
4221193Fuel injection system for an automotive internal combustion engine equipped with a fuel cut off control signal generator
A fuel injection system for an automotive internal combustion engine equipped with a fuel cut off control signal generator comprises a smoothing circuit which smoothes a fuel cut off control signal produced in response to engine parameters. The flow rate ...
09/09/1980
4184460Electronically-controlled fuel injection system
An electronically-controlled fuel injection system includes electromagnetic fuel injection valves each of which is mounted in each cylinder of an internal combustion engine, and the injection of fuel during the starting period of the engine is also effect...
01/22/1980
4174682Auxiliary fuel injection control circuit
An electronic circuit is described for use with an existing fuel injection system in which fuel control pulses are generated on the basis of air flow rate, engine speed and exhaust gas composition. In particular, the existing fuel injection system is assu...
11/20/1979
4173953Fuel injection pulse suppressor apparatus
A circuit for use in conjunction with the fuel injection controller of an internal combustion engine in which fuel injection valve control pulses are generated on the basis of engine information, for example, engine speed and air flow rate. When the engin...
11/13/1979
4172434Internal combustion engine
In order to reduce engine output torque, a gasoline engine can omit the ration of fuel from a proportion of its cylinder cycles, employing a pattern of successive inhibition and enablement of its fuel rations. For a given output torque, different patterns...
10/30/1979
4171692Fuel injection control system
A control circuit for a fuel injection system which modifies the control pulses of the electromagnetic valves during engine starting. The width of the normal injection control pulses determines the amount of fuel and is derived from engine parameters, in ...
10/23/1979
4153014Peripheral circuitry for single-point fuel injection
A single point fuel injection system for an internal combustion engine including a throttle body having first and second air intake throats corresponding to first and second intake manifold planes of the engine, the air flow through each throat being cont...
05/08/1979
4134368Fuel injection control system
A plurality of sensors generate signals representing engine parameters indicative of the engine fuel requirement. These signals are all applied to a single function generator to form a composite signal that is a nonlinear function of the engine fuel requi...
01/16/1979
4121549Apparatus for metering fuel and air for an engine
Apparatus for metering fuel and air for an engine, which apparatus comprises air flow measuring means which measures at least a part of the flow of air for the engine and which generates an electrical output that is proportional to the measured air flow, ...
10/24/1978
4084552Method and apparatus for fuel injection control
A control pulse generator for the fuel injection system of internal combustion engines. The rpm-dependent trigger signal is applied simultaneously to two multivibrators one of which generates pulses whose length is determined by engine parameters while th...
04/18/1978
4075983Electronic circuitry for maintaining constant engine speed fuel injection
Electrical signals from a vehicle distributor are processed by a pulse geating circuit. Generated pulses are integrated to form an analog signal which is linearly proportional to engine speed. The analog signal is algebraically summed with an analog sign...
02/28/1978
4069795Start-up control for fuel injection system
A fuel injection system for a multi-cylinder engine includes means for generating a sequence of pulses during each cycle of the engine. These pulses trigger variable width pulse generators, sensitive to the engine operating parameters. The variable width ...
01/24/1978
4064846Method and apparatus for controlling an internal combustion engine
A control apparatus for an internal combustion engine performs cyclic modulations of an operational parameter of the engine, for example by periodic leaning out of the fuel-air mixture to some of the engine's cylinders. The resulting changes in angular ac...
12/27/1977
4058709Control computer for fuel injection system
A fuel injection system for multi cylinder engine employs a plurality of separate computing circuits for generating variable width control pulses to fuel injectors. Each channel actuates at least one fuel injector during more than 50% of an engine cycle. ...
11/15/1977
4048479Optimum air/fuel mixture computer for internal combustion engines
In a computer for calculating the optimum mixture of combustion agent and fuel for an internal combustion engine, of the type comprising a monostable univibrator operating in synchronism with the rotational velocity of the engine and generating electric p...
09/13/1977
4015563Stabilized fuel injection system
To prevent bucking of a fuel injection operated automotive engine, under transient dynamic conditions, due to resilient suspension thereof, a timing capacitor in the fuel injection system has an auxiliary capacitor connected in parallel thereto over a dio...
04/05/1977
3987764Timer means for sequential fuel injection
Timer means for sequential fuel injection including a timer circuit triggered to develop an output signal after a time interval having a duration which varies as a linear function of the magnitude of one or more control voltages varied in accordance with ...
10/26/1976
3967596Engine control systems
An engine control system utilizes a vortex whistle for producing an acoustic signal the frequency of which varies with the rate of flow of air passing through the inlet manifold of the engine, and a control device for controlling an engine characteristic,...
07/06/1976
 
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