Investigations of diesel engine in the road test
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1Kharkiv National University of Automobile and Highways, Kharkov, Jaroslawa Mudrego 24, 61-002 Charków, Ukraina
UWM w Olsztynie
Oleksandr Vrublevskyi   

UWM w Olsztynie, ul. Zołnierska, 14c/213, 10-561 Olsztyn, Polska
Online publication date: 2018-04-26
Publication date: 2018-06-11
Submission date: 2018-02-06
Final revision date: 2018-03-26
Acceptance date: 2018-04-23
Diagnostyka 2018;19(2):89–94
This article describes the details of the method designed to determine parameters of vehicle’s internal combustion engine with compression ignition (CI) during road tests. The method requires simultaneous measurements for the crankshaft rotation frequency, fuel pressure in the injector, pressure in the combustion chamber, air pressure and temperature in the intake system. More, this method utilizes possibilities of the GPS navigation - all the received data is being synchronized with navigation data and saved to the database. Fuel consumption was calculated using the original method based on processing the pressure data from inside the cylinder alongside with the fuel injection parameters, previously received from the injection system and engine tests in the laboratory. Obtained characteristics allow to perform detailed analysis for the engine’s single work cycle in the transient processes, which are the biggest part of engine’s common work conditions. Measurements results received with help of the created experimental gear were used to determine CI engine parameters. Those parameters may help in simulation of the engine work inside the vehicle, and could be used in engine parameters optimization tasks.
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