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Modyfikacja oprogramowania silnika samochodu osobowego oraz jego wpływ na osiągi i ekonomię eksploatacji jednostki napędowej

Kuszewski G., Świątek D., Gutek D.

Autobusy : technika, eksploatacja, systemy transportowe

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2017

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R. 18, nr 12

1026--1030, CD

PL

W artykule omówiono jak modyfikacja oprogramowania sterującego jednostką napędową wpływa na osiągi oraz ekonomię pojazdu. W kolejnym etapie nastąpiło przeprowadzenie zaawansowanych testów oraz technicznych badań z wykorzystaniem wysokiej jakości sprzętu do diagnostyki i wykonywania pomiarów. Modyfikacje miały na celu wyznaczenie pozytywnych jak i negatywnych aspektów wpływających na : moc oraz moment obrotowy silnika, elastyczność w zakresie konkretnych prędkości oraz wzrost ekonomii użytkowania pojazdu. Przeprowadzone badania pozwoliły określić przyrost mocy jak również różnice spalania dla wybranych jednostek napędowych.

EN

The main goal of the article was to carry out professional, possibly comprehensive modifications of the software of the computer governing the operation of a passenger car drive unit with a variety of parameter selection options. In the next stage, advanced tests and technical inspection were carried out using high quality diagnostic and measuring equipment. Modifications were aimed at identifying both positive and negative aspects affecting: the engine’s power output and torque; flexibility in specific speed ranges; an increase in the level of the economical usage of the vehicle. The tests were carried out on various vehicles with petrol and diesel engines in order to optimally mirror the actual impact of parameter changes on particular drive units. The conducted tests were intended to cast light on the hidden capabilities of drive units and to show how they could be used without the necessity of interfering with mechanical systems. All the tested cars were controlled with electronic components manufactured by Bosch in order to unify the implemented modifications, and the production dates of the tested vehicles belonged to the period from 1999 to 2012. The age distribution of the vehicles was intended to make the users aware of how wide a range of customers could benefit from a significant improvement in power and torque characteristics in such a car. Increasing flexibility of the vehicle is the principal factor allowing the user of the roads to safely perform the manoeuvres of joining the traffic or overtaking. The above-mentioned measures are actually impossible to implement on one's own and the user themselves also has to correctly estimate whether their car is in the technical condition which will allow them to safely perform such interference.

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Bezwykopowa budowa kolektora w Brisbane na głębokościach dochodzących do 50 m

Kuliczkowski A., Parka A., Świątek D.

Inżynieria Bezwykopowa

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2007

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nr 4

78-80

EN

The authors of the paper describe a construction project for trenchless installation of new sewage collector in Brisbane. Network inspections performed in years preceding the project have shown steadily deteriorating condition of the existing pipelines, especially ones build at the beginning of 20th century. A plan for modernization and reconstruction of the system was launched. The project proved to be one of most difficult and spectacular in the world, due to the complex soil conditions, unstable ground water levels, dense urbanization of the area and the enormous rate of the enterprise.

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Określenie współczynników oporu w korycie rzeki nizinnej

Świątek D., Kubrak J., Pachuta K.

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska

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2005

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Vol. 14, No. 2

161--166

EN

Calculation methods of discharge capacity in rivers and channels with flexible vegetation are based at the Manning’s and Darcy-Weisbach’s friction factors to appear local river bed stresses coupled with other fluid dynamic processes. An example of friction factors calculation has been developed in this paper. The hydrometrical measurement has been surveyred in a selected cross section in the Lower Biebrza basin. The absolute roughness for the divided parts of cross sections has been calculated by using Collebrook-White’s equation. Results show that friction factors for the vegetation boundary are much greater then for the bottom of cross sections.