scholarly journals DEVELOPMENT OF MICROPROCESSOR SYSTEMS CONTROL OF GAS ICE FOR OPERATION WITH LIQUEFIED PETROLEUM GAS

InterConf ◽  
2021 ◽  
pp. 327-332
Author(s):  
Serhii Kovalov
Keyword(s):  
Diesel Engines ◽  
Internal Combustion Engines ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Internal Combustion ◽  
Intake Manifold ◽  
Combustion Engines ◽  
Electronic Control ◽  
Liquefied Petroleum Gas ◽  
Microprocessor Control

The expediency of converting the transport diesel engines in operation into gas internal combustion engines with spark ignition for operation on liquefied petroleum gas has been substantiated. It is shown that the use of liquefied petroleum gas instead of diesel fuel can reduce the operating costs of vehicles. Multifunctional electronic microprocessor control systems based on Avenir Gaz 37 level “A” and Avenir Gaz 37 level “B” electronic control units have been developed. It is shown that an electronic microprocessor control system with an Avenir Gaz 37 electronic control unit of level "A" allows converting diesel engines into gas internal combustion engines with LPG supply through a gas-air mixer into the intake manifold. The test results showed the high energy and efficient performance of the gas internal combustion engine. The second electronic microprocessor control system with an electronic control unit Avenir Gaz 37 of level "B" allows converting diesel engines into gas internal combustion engines with LPG injection through an accumulative power supply subsystem and multipoint injection of liquefied petroleum gas (Common Rail type) in combination with the use of a contactless electronic subsystem ignition with a movable voltage distributor and a cylinder filling control subsystem with a charge of the working mixture. At the same time, Avenir Gaz 37 "B" ECU with a loaded B1 level software module provides group injection of LPG into the intake manifold and sequential injection with a B2 level software module. The principle of operation of each of the three subsystems, which the D-240-LPG-"B" gas engine is equipped with, is described. The tests carried out on the D-240-LPG-"B" gas engine with the Avenir Gaz 37 "B" control unit confirmed its operability.

DEVELOPMENT OF AN ELECTRONIC CONTROL SYSTEM FOR GAS-ENGINES WITH SPARK IGNITION, CONVERTED ON THE BASIS OF DIESEL ENGINES TO WORK FOR ON LIQUEFIED PETROLEUM GAS

2018 ◽  
pp. 12-18 ◽  
Author(s):  
Serhii Kovalov
Keyword(s):  
Control System ◽  
Diesel Engines ◽  
Internal Combustion Engines ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Spark Ignition ◽  
Combustion Engines ◽  
Electronic Control ◽  
Liquefied Petroleum Gas ◽  
Electronic Control System

The expediency and advantages of using gas motor fuels, in particular, liquefied petroleum gas with respect to traditional liquid motor fuels, are shown. Technical solutions for the use of liquefied petroleum gas by diesel engines are presented and analysed. The expediency and advantages of converting diesel engines to gas spark ignition internal combustion engines with respect to conversion to gas diesel engines. Developed by the Ukrainian synthesis technology Avenir Gaz has for converting diesel engines to gas internal combustion engines with spark ignition. According to the synthesis technology of Avenir Gaz, re-equipment of diesel engines of vehicles is carried out on the basis of the universal electronic control system for gas internal combustion engines, which is based on the multifunctional electronic microprocessor control unit Avenir Gaz 37. The developed electronic microprocessor control system for gas internal combustion engines with forced ignition has a modular structure and consists of two main and a number of additional subsystems. A schematic diagram of a universal electronic control system of a gas internal combustion engine with spark ignition for operation on liquefied petroleum gas is presented. The principle of operation of the main subsystems, which include the subsystem of power management and injection of liquefied petroleum gas by gas electromagnetic injectors into the intake manifold of a gas engine, and the principle of operation of the control subsystem of the ignition with two-spark ignition coils are described. A multifunctional electronic control unit Avenir Gaz 37 has been designed and manufactured. Non-motorized tests of the electronic control unit confirmed its performance. Based on the synthesis technology of Avenir Gaz using the universal electronic control system for gas internal combustion engines with the Avenir Gaz 37 ECU, the D-240 diesel engine was converted into a gas spark ignition internal combustion engine of the D-240-LPG model. Keywords: gas internal combustion engine with forced ignition, liquefied petroleum gas (LPG), electronic microprocessor control system for gas internal combustion engines, vehicles operating on LPG.

scholarly journals DEVELOPMENT OF PROMISING SYNTHESIS - TECHNOLOGY AVENIR GAZ CONVERTING DIESELS TO GAS ENGINES WITH SPECIAL IGNITION

ScienceRise ◽  
2020 ◽  
pp. 3-9
Author(s):  
Serhii Kovalov
Keyword(s):  
Control Systems ◽  
Diesel Engines ◽  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Injection System ◽  
Intake Manifold ◽  
Maximum Speed ◽  
Combustion Engines ◽  
Microprocessor Control ◽  
Technological Product

The object of research is the multifunctional synthesis technology Avenir Gaz (of various levels of complexity), intended for converting transport diesel engines into spark-ignited gas internal combustion engines (ICE) for operation on liquefied petroleum gas (LPG). Investigated problem: the creation of an affordable synthesis technology in terms of complexity and price, which allows converting operating diesel engines into gas internal combustion engines operating on cheaper and environmentally friendly gas fuel - LPG. Main scientific results: Avenir Gaz synthesis technology (two levels of complexity, qualified as levels "A" and "B") for converting diesel engines into gas internal combustion engines is developed and created. It is shown that the conversion of diesel engines according to the Avenir Gaz synthesis technology is carried out on the basis of the developed electronic microprocessor control systems. And the basis of the control systems is the developed and manufactured two electronic microprocessor control units Avenir Gaz 37 (hereinafter – ECU Avenir Gaz 37). ECUs in accordance with the levels of complexity of synthesis technology are qualified as – ECUs Avenir Gaz 37 "A" and Avenir Gaz 37 "B". It is shown that Avenir Gaz synthesis technology of level "A" allows converting diesel engines into gas internal combustion engines with LPG supply through a gas-air mixer into the inlet pipeline. At the same time, the Avenir Gaz 37 "A" ECU, using the signal from the Hall sensor of the distributor, limits the maximum speed of the gas engine, thereby ensuring its safe operation. And the synthesis technology Avenir Gaz 37 of level "B" allows converting diesel engines into gas internal combustion engines providing group or sequential injection of LPG by electromagnetic gas nozzles (injection system of the Common Rail type) into the intake manifold in the area close to the intake valve. Area of practical use of the research results: converting diesel vehicles, including agricultural machinery (powerful wheeled and tracked tractors, combines, etc.) into spark-ignited gas combustion engines operating on LPG. An innovative technological product: Avenir Gaz synthesis technology, which allows converting the transport diesel engines in operation into gas internal combustion engines for operation on LPG. Scope of application of the innovative technological product: naturally aspirated and supercharged diesel engines with the number of cylinders from one to six, in-line and V-shaped, with a uniform alternation of working strokes.

Theoretical Approach on Internal Combustion Engines Using Multivariable Procedures

2014 ◽  
Vol 1036 ◽  
pp. 574-579
Author(s):  
Florin Oloeriu ◽  
Oana Mocian ◽  
Marin Marinescu ◽  
Dănuţ Grosu ◽  
Constantin Ilie
Keyword(s):  
Control Systems ◽  
Internal Combustion Engines ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Normal Operation ◽  
Electronic Systems ◽  
Combustion Engines ◽  
Electronic Control ◽  
Sensors And Actuators ◽  
Electric Circuits

The paper highlights the main possibilities available when studying how the vehicles engine operate using algorithms specific to the multivariate statistics. A particular example of studying the engines behavior is represented by the diagnosis activity performed onto the vehicle, an activity that a special attention is being paid to throughout the paper. To this purpose, during the tests we have intentionally caused certain malfunctions to the engine. Circuit breakdowns were intentionally caused on various electric circuits that connect sensors and actuators to ECU. Fitting modern vehicles with electronic control systems offers the possibility for computerized approach of various maintenance operations onto its mechatronic components (sensors, actuators). These components are part of those electronic systems. Such an approach includes onboard simulation of various malfunctions that may occur during normal operation of vehicles. The procedure which is currently presented in the paper herein is about generating controlled malfunctions, using the sensors connector, a signal that is specifically varied towards the electronic control unit (ECU). Thus the ECU will interpret that the system that it is managing indicates a vehicle malfunction. .

scholarly journals DEVELOPMENT AND RESEARCH OF SYNTHESIS TECHNOLOGY CONVERSION OF VEHICLE DIESEL TO GAS ENGINES WITH SPARK IGNITION

InterConf ◽  
2021 ◽  
pp. 258-263
Author(s):  
Serhii Kovalov
Keyword(s):  
Diesel Engines ◽  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Spark Ignition ◽  
Injection System ◽  
Intake Manifold ◽  
Combustion Engines ◽  
Common Rail Injection System ◽  
Control Units ◽  
Common Rail Injection

The expediency of converting transport diesel engines into gas internal combustion engines with spark ignition has been substantiated. A multifunctional synthesis technology Avenir Gaz has been developed, designed to convert diesel engines of vehicles in operation into spark-ignited gas internal combustion engines operating on a cheaper and environmentally friendly gas fuel - LPG. The synthesis technology is based on three electronic microprocessor control units Avenir Gaz 37 of level "A", Avenir Gaz 37 of level "B" and Avenir Gaz 37 of level "C". It is shown that Avenir Gaz synthesis technology of level "A" allows converting diesel engines into gas internal combustion engines with LPG supply through a gas-air mixer into the intake pipeline, and level “B” provides group or sequential LPG injection by electromagnetic gas nozzles (common rail injection system ) into the intake manifold. Avenir Gaz synthesis technology of level "C" allows the use of an electronic inductive spark ignition system with an immovable voltage distributor (with two-spark or individual ignition coils).

scholarly journals Electronic control unit development and emissions evaluation for hydrogen–diesel dual-fuel engines

2018 ◽  
Vol 10 (12) ◽  
pp. 168781401881407
Author(s):  
Yasin Karagöz ◽  
Majid Mohammad Sadeghi
Keyword(s):  
Diesel Engines ◽  
Working Condition ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Dual Fuel ◽  
Hydrogen Energy ◽  
Compression Ignition ◽  
Electronic Control ◽  
Fuel System ◽  
Compression Ignition Engines

In this study, it was aimed to operate today’s compression ignition engines easily in dual-fuel mode with a developed electronic control unit. Especially, diesel engines with mechanical fuel system can be easily converted to common-rail fuel system with a developed electronic control unit. Also, with this developed electronic control unit, old technology compression ignition engines can be turned into dual-fuel mode easily. Thus, thanks to the flexibility of engine maps to be loaded into the electronic control unit, diesel engines can conveniently be operated with alternative gas fuels and diesel dual fuel. In particular, hydrogen, an alternative, environmentally friendly, and clean gas fuel, can easily be used with diesel engines by pilot spraying. Software and hardware development of electronic control unit are made, in order to operate a diesel engine with diesel+hydrogen dual fuel. Finally, developed electronic control unit was reviewed on 1500 r/min stable engine speed on different hydrogen energy rates (0%, 15%, 30%, and 45% hydrogen) according to thermic efficiency and emissions (CO, total unburned hydrocarbons, NOx, and smoke), and apart from NOx emissions, a significant improvement has been obtained. There was no increased NOx emission on 15% hydrogen working condition; however, on 45% hydrogen working condition, a dramatic increase arose.

An Electronic Control Unit for Joint Supply of Fuel and Hydrogen Additives to Diesel Engines of Vehicles

2020 ◽  
Vol 91 (3) ◽  
pp. 153-157
Author(s):  
D. Ya. Nosyrev ◽  
I. K. Andronchev ◽  
V. V. Asabin ◽  
A. A. Mishkin
Keyword(s):  
Diesel Engines ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Electronic Control

Intake Air Path Diagnostics for Internal Combustion Engines

2006 ◽  
Vol 129 (1) ◽  
pp. 32-40 ◽  
Author(s):  
Matthew A. Franchek ◽  
Patrick J. Buehler ◽  
Imad Makki
Keyword(s):  
Steady State ◽  
Internal Combustion Engines ◽  
Air Flow ◽  
Internal Combustion ◽  
Flow Sensor ◽  
Path Model ◽  
Intake Manifold ◽  
Fault Estimation ◽  
Combustion Engines ◽  
Sensor Measurement

Presented is the detection, isolation, and estimation of faults that occur in the intake air path of internal combustion engines during steady state operation. The proposed diagnostic approach is based on a static air path model, which is adapted online such that the model output matches the measured output during steady state conditions. The resulting changes in the model coefficients create a vector whose magnitude and direction are used for fault detection and isolation. Fault estimation is realized by analyzing the residual between the actual sensor measurement and the output of the original (i.e., healthy) model. To identify the structure of the steady state air path model a process called system probing is developed. The proposed diagnostics algorithm is experimentally validated on the intake air path of a Ford 4.6L V-8 engine. The specific faults to be identified include two of the most problematic faults that degrade the performance of transient fueling controllers: bias in the mass air flow sensor and a leak in the intake manifold. The selected model inputs include throttle position and engine speed, and the output is the mass air flow sensor measurement.

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