Abstract
This study is an attempt to determine the control parameters of the control system for gaseous fuels currently used for driving vehicles. It presents the selected dynamic parameters of the car obtained when fueling the engine with petroleum-based LPG. This paper attempts to determine the optimal timing advance of the gas-air mixture and the efficiency of its processing in the drive system of the tested vehicle driven by a four-cylinder engine with a 1.6 dm. More so, this article includes an analysis of the influence of the optimised power charts of the engine on the dynamics of the motion of a motor vehicle running on gaseous fuel. To present changes in the dynamics of movement, indicators and parameters determining changes in the dynamics of vehicle movement, such as dynamic coefficient, acceleration and flexibility were used. Through this analysis, it is possible to verify the optimised power and torque waveform and determine whether the vehicle dynamics improved.
Highlights
The achievement of low emissions in exhaust gases from SI engines currently determines the development trends of motor vehicles
The currently applicable dual-fuel alternative gasoline or LPG or CNG systems are solutions that increase vehicle autonomy, considering its beneficial environmental aspects, it ensures the economics of operation due to the advantageous price ratio compared to gasoline [9, 10]
Despite the critical assessments of environment benefits resulting from the use of alternative gaseous fuels, which appear in some scientific studies, most vehicle manufacturers include them in the adopted development strategies of the product being manufactured [1, 2]
Summary
The achievement of low emissions in exhaust gases from SI engines currently determines the development trends of motor vehicles. Despite the critical assessments of environment benefits resulting from the use of alternative gaseous fuels, which appear in some scientific studies, most vehicle manufacturers include them in the adopted development strategies of the product being manufactured [1, 2]. This is because currently available technologies enable the production of these fuels from biomass, qualifies them for renewable fuels. Current LPG and CNG systems ensure relatively fast adaptation of the vehicle to fuel with these fuels, and the results of their tests, carried out following the requirements of UN / ECE Regulation 115, confirm the reduction of CO2 emissions and controlled exhaust components compared to the emission obtained for gasoline. Obtained results of the calculations explain the effect of changes in the ignition advance angle on changes in the dynamics of the tested vehicle
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