Abstract
This dissertation shows the analysis of the selected indicators of the work of a passenger vehicle drivetrain designated with the use of the Road Load Engine Simulator. In a digital simulation, an internal – combustion engine is saved in a form of numerical speed characteristics in the computers memory. Basing on a virtual vehicle, some indicators of the drivetrain of a passenger vehicle have been determined, while driving with five electronic throttle inclination regulator settups. The simulation results of e.g., throttle repeal speeds and fuel consumtion are summarized in a tabular and graphic form and some of them are expressed per 100 kilometer of the distance covered. Both synthetic and real driving cycles were analyzed during the study and their influence on the egines fuel consumption was also shortly described.
Highlights
The increase in human mobility and the ways of using internal combustion engines contribute to the progress of environmental pollution
By analyzing the obtained research results it can be seen, how significant is the effect of throttle inclination management method on vehicle dynamics, fuel consumption and driving safety
The analysis of simulated drive cycles allows to assume that conventional regulators only partially fulfill the requirements of minimizing fuel consumption while retaining adequate vehicle drive dynamics
Summary
The increase in human mobility and the ways of using internal combustion engines contribute to the progress of environmental pollution. One way to reduce the emissions is to minimize the fuel consumption. Through reducing the fuel volume dosed to the engines combustion chambers; it may cause a reduction of the vehicles traction properties and increase in emissions. Binary readings of the engine characteristics and velocity profiles of the driving cycles are downloaded to the Simulator to enable the test to run without the actual vehicle model or its drivetrain. The chosen velocity profiles were measured in real suburban driving conditions near the Opole city. During those on-the-road measurements the driver was controlling the vehicles load with an intention of achieving maximum driving dynamics (cycle 1) and the lowest possible fuel consumption (cycle 2).
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