Matches 51 - 100 out of 204 < 1 2 3 4 5 >
Match Document Document Title
6422000 Method for estimating the temperature of the exhaust gases upstream from a pre-catalyser, disposed along an exhaust pipe of an internal-combustion engine  
A method is described for estimating the temperature of the exhaust gases upstream from a pre-catalyser disposed along an exhaust pipe of an internal-combustion engine, which is provided with a...
6401454 Engine control device  
An engine control device provided with a lean NOx catalyst comprises means for estimating a condition of the lean NOx catalyst, means for performing reactivation control of the lean NOx catalyst...
6397820 Method and device for controlling a combustion engine  
Methods are disclosed for controlling an internal combustion engine in a vehicle which include detecting the value of a variable associated with an operating condition of the engine including the...
6390081 Method and device for determining temperature values in a combustion engine  
Methods for determining the temperature of at least one component associated with an internal combustion engine in a vehicle are disclosed comprising detecting the value of a predetermined variable...
6363312 Method and apparatus for determining the A/F ratio of an internal combustion engine  
A method is disclosed for using a computer for determining an air-to-fuel (A/F) ratio of an internal combustion engine in which information characteristic of the engine relating the A/F ratio of...
6343596 Fuel delivery regulator  
A fuel regulator for two-cycle and/or four-cycle internal combustion engines, particularly those found in model airplanes, comprises a microprocessor, a thermocouple exhaust gas temperature sensor,...
6283107 Methods and apparatus for measuring atmospheric pressure and exhaust back pressure  
An engine including, in one embodiment, a pressure sensor utilized for determining both barometric pressure and engine exhaust back pressure is described. More specifically, and in the one...
6209520 Method and apparatus for cylinder balancing  
An automobile cylinder balancing assembly 10 including a controller 36 which operates under stored program control and which substantially ensures that the torque produced by each of the cylinders...
6095127 Fuel limiting method in diesel engines having exhaust gas recirculation  
A method of controlling the fueling rate of a compression ignition engine having an exhaust gas recirculation system (EGR) and a turbocharger. The method includes the steps of predicting the...
6092016 Apparatus and method for diagnosing an engine using an exhaust temperature model  
An apparatus and method for diagnosing an engine including at least two cylinder banks using an exhaust temperature model is disclosed. The apparatus and method are operable for: (a) determining an...
6089017 Exhaust gas purification system of internal combustion engine  
An engine exhaust gas purification system having a catalyst in an exhaust system of the engine, said catalyst reducing nitrogen oxide when exhaust gas generated by the engine is in an oxidizing...
6035640 Control method for turbocharged diesel engines having exhaust gas recirculation  
A method of controlling the airflow into a compression ignition engine having an EGR and a VGT. The control strategy includes the steps of generating desired EGR and VGT turbine mass flow rates as...
6019094 Engine exhaust recirculation device  
In an engine exhaust recirculation device, a target exhaust recirculation rate is determined based on an engine running state. The required flowpath cross-sectional area of the exhaust...
6003478 Dual-fuel control/monitoring system  
A control box (11) for a dual-fuel internal-combustion engine (6) is actuated automatically by an oil-pressure switch (16) when activated by a manual switch (30) that directs power from a battery...
5983876 System and method for detecting and correcting cylinder bank imbalance  
A system and method for detecting and correcting power imbalance between cylinder banks of an internal combustion engine utilizes, in one embodiment, temperature sensors at the exhaust manifolds...
5941222 Optimizing the efficiency of an internal combustion engine  
A fuel injector matrix to optimize the operating efficiency of an internal combustion engine, each injector having a metering orifice sized for each of the combustion cylinders of the engine to...
5927248 Method of monitoring an overheating protective arrangement during full-load operation of an internal combustion engine  
The invention is directed to a method for limiting the temperature of the exhaust gas of an internal combustion engine operating at high load. In the method, a first measure for reducing the...
5878717 Cylinder pressure based air-fuel ratio and engine control  
A system and method for controlling an air-fuel ratio of an internal combustion engine using a ratio of cylinder pressures measured within at least one cylinder. The air-fuel ratio control system...
5845627 Internal combustion engine pneumatic state estimator  
Pneumatic state estimation operations for estimating gas flow and pressure at pneumatic nodes and flow branches within a reticulated engine system for engine control and diagnostic operations...
5842459 Method of controlling fuel injection apparatus for internal combustion engines  
The present invention is a method of controlling a fuel injection apparatus for an internal combustion engine, and is capable of preventing the breakage of a component which is exposed to...
5829247 Control system for a combustion engine  
A control system for a combustion engine enriches the air-fuel mixture supplied to the combustion engine when a signal indicating the efficiency of the combustion engine either directly or...
5778865 Evaporative fuel control system for internal combustion engines  
An evaporative fuel control system for an internal combustion engine having a throttle valve includes a canister for adsorbing evaporative fuel generated in the fuel tank, a purging passage for...
5771688 Air-fuel ratio control apparatus for internal combustion engines  
On an exhaust pipe of an internal combustion engine, an A/F sensor is disposed at an upstream side of a three-way catalyst and a downstream side O 2 sensor is disposed on a downstream side...
5771847 Fuel oxidizer emulsion injection system  
A system for improving efficiency and reducing harmful emissions in an innal combustion engine and for allowing the engine to run in oxygen poor and oxygen depleted environments. An oxidant, such...
5735245 Method and apparatus for controlling fuel/air mixture in a lean burn engine  
The system for controlling the fuel/air mixture supplied to a lean burn engine when operating on natural gas, gasoline, hydrogen, alcohol, propane, butane, diesel or any other fuel as desired. As...
5724950 Exhaust gas recirculating controller  
An exhaust passage is connected to an intake passage of an engine through an exhaust recirculating valve. A target opening of the exhaust recirculation valve is first set according to a target...
5713339 Apparatus and method for implementing lean-burn control of internal combustion engines  
An apparatus for lean-burn control of an internal combustion engine, comprising: an exhaust pressure-sensor for measuring the exhaust pressure in the exhaust system of the internal combustion...
5704340 Excess air rate detecting apparatus and an excess air rate control apparatus for an engine  
An excess air rate detecting apparatus and a control apparatus using the same are provided. In accordance with operating conditions of an engine (1) which includes an exhaust gas recirculation...
5682867 Feedback control system for marine propulsion engine  
A number of embodiments of feedback control systems for maintaining the desired air fuel ratio in a marine propulsion engine that has an exhaust system for exhausting the exhaust gases to the...
5671720 Apparatus and method for controlling air-fuel ratio of an internal combustion engine  
An air-fuel ratio feedback correction coefficient for correcting a fuel supply quantity to an engine is proportional-plus-integral controlled based on an output from an oxygen sensor for detecting...
5638803 Oiling control device for remote-control model engine oil tank  
The present invention relates to a fueling control device for a remote-control model to prevent fuel oil overflow and to stop fueling automatically by sensing fuel oil delivery pressure. The device...
5602737 Method of and apparatus for monitoring operation of a catalyst  
The operation of a catalyst can be monitored using a two part test. An engine management system is arranged to perturb the oxygen concentration of the exhaust gas of an internal combustion engine...
5601068 Method and apparatus for controlling a diesel engine  
A method and apparatus for controlling a diesel engine to decrease the detrimental compositions of exhaust gas by supplying an appropriate amount of oxygen into the combustion chamber for the...
5588415 Engine management system  
A method for controlling fuel supplied to an engine includes steps of conducting tests on a representative model of a family of engines to obtain constants and coefficients of operating...
5582157 Fuel property detecting apparatus for internal combustion engines  
Provided is an apparatus for detecting a volatility of fuel supplied to an engine, in order to ensure a more precise acceleration dependent fuel increasing-correction during air-fuel-ratio...
5580440 Air fuel ratio sensory  
A method and apparatus are disclosed for measuring atmospheric pressure in conjunction with an air-fuel ratio sensor of the type comprising a concentration cell with atmospheric air and exhaust...
5544639 Temperature predicting system for internal combustion engine and temperature control system including same  
A temperature projecting system includes a temperature sensor for monitoring a temperature of an objective portion where the temperature changes depending on an engine operating condition. The...
5533491 Control system for metering fuel to an internal combustion engine  
A control system for metering fuel to an internal combustion engine is proposed. Time duration values TVO and threshold values are preferably pregiven for the engine temperature in the idle case...
5520161 Exhaust gas recirculation system for a compression ignition engine and a method of controlling exhaust gas recirculation in a compression ignition engine  
An exhaust gas recirculation system for a compression ignition engine and a method of controlling exhaust gas recirculation in compression ignition engines are disclosed. The method and apparatus...
5488933 Fuel supply system for miniature engines  
Exhaust pressure of an air-cooled miniature internal combustion engine is used for fuel metering and fuel delivery to the engine under higher pressure than previously obtainable from muffler...
5460149 Carburetor kit for improved air-fuel mixture  
Flow passage lines are used to connect the float chamber of a conventional carburetor both to the engine's intake and exhaust manifold. The gas flow produced by the exhaust manifold provides a...
5427083 Method for controlling fuel supply to an engine  
A method for controlling fuel supplied to an engine includes steps of conducting tests on a representative model of a family of engines to obtain constants and coefficients of operating...
5404719 Engine exhaust gas purification device  
An engine comprising an exhaust passage having therein an NO x absorbent which absorbs NO x when the air-fuel ratio of the exhaust gas flowing into the No x absorbent is lean and releases...
5390649 Method for controlling an internal combustion engine operating with exhaust gas recirculation  
An internal combustion engine operating with exhaust gas recirculation and including an intake-tube-pressure-guided injection system, has an intake tube with a throttle valve, an exhaust pipe, a...
5391284 Arrangement for determining the lambda value of an air/fuel mixture  
An arrangement determines a voltage which indicates the lambda value of an air/fuel mixture supplied to a combustion engine generating exhaust gas during the operation thereof. The arrangement...
5385134 System for monitoring leakage into exhaust lines  
A system for monitoring suction leakage of external air into the exhaust gas path of an internal combustion engine during intermittent reduced pressure phases of the engine, during operation,...
5381775 System for controlling an internal combustion engine  
The invention relates to a system for controlling an internal combustion engine, in particular a self-igniting internal combustion engine. First means (200) specify a first signal (MLS, US) on the...
5349936 Method of diagnosing exhaust gas recirculation control system of internal combustion engine and apparatus for carrying out the same  
A method of diagnosing an exhaust gas recirculation control system of an engine as to occurrence of a fault in the system. The state of a pressure sensor incorporated in the exhaust gas...
5322047 Temperature compensated air/fuel ratio controller and method therefor  
The temperature compensated air/fuel ratio controller is used in conjunction with an internal combustion engine. The method includes electronically sensing the oxygen content and the temperature of...
5303168 Engine operation to estimate and control exhaust catalytic converter temperature  
A method of operating an internal combustion engine wherein a predicted engine exhaust temperature is used as an input to a microprocessor controlling the engine. Exhaust temperature can be...
Matches 51 - 100 out of 204 < 1 2 3 4 5 >