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Hybrid vehicle diagnostics

Prajwowski K., Osipowicz T.

Journal of KONES

2017

Vol. 24, No. 1

309--315

The history of hybrid vehicles has started between the 19th and the 20th century because then the first project of a hybrid vehicle was constructed. The first man who manufactured a front hub mounted electric propulsion connected with a generator powered by a spark ignition engine was Ferdinand Porsche. This vehicle was called the Lohner- -Porsche Electromobile. The first mass-produced hybrid vehicle was the first generation Toyota Prius. The model premiere was in 1996 and the production started one year later. The vehicle was equipped with a 1.5 dcm 58 hp spark ignition engine and with the added electric propulsion. It generated 40 mechanical hp. Since 2000, a 72 hp spark ignition engine and a 44 hp electric generator were mounted. Fuel consumption of this model was 5 litres per 100 km. In the early 2000s, 95% hybrid vehicles were the Toyota Prius. The biggest competitor to the Toyota Prius was the Honda Insight. Lexus and Mercedes started manufacturing hybrid vehicles few years later. The most popular car brands that sell hybrid vehicles are Toyota and Lexus from Toyota Motor Corporation. This article describes an example of diagnostic possibilities for the hybrid vehicle system. The construction of vehicle models that use two propulsion systems (spark ignition engine and electric generator) results in the development and increase in control system devices. The measurements were made using various diagnostic devices, e.g. a diagnostic scanner, mustimeter, megohm-meter and oscilloscope. The reading of fault codes is not enough so it is necessary to use a mustimeter or a megohm-meter to examine the signal characteristics, which is presented in this article.

Możliwości diagnozowania silnika Fiat 1.3 JTD MultiJet

Prajwowski K.

Autobusy : technika, eksploatacja, systemy transportowe

2014

R. 15, nr 6

226-229

W artykule przedstawiono przykładowe pomiary czujników oraz elementów wykonawczych silnika o zasilaniu systemem Common Rail na przykładzie silnika Fiat 1.3 JTD MultiJet. Pomiarów dokonano za pomocą różnych urządzeń diagnostycznych jak np. multimetrem czy oscyloskopem. Czasami sam odczyt kodów błędów za pomocą testera diagnostycznego nie wystarcza i trzeba sprawdzić przebiegi sygnałów za pomocą oscyloskopu, co przedstawiono w niniejszym artykule.

Article describes examples sensors measurements and performances elements Common Rail Fiat 1,3 JTD MultiJet engine. Measurements has been carried out with various diagnostic devices for example multimeter or oscilloscope. Sometimes error code reading by using diagnostic testing machine is not enough and it is necessary to check signals oscilloscope graphs what describes present article.