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Analiza krótkotrwałego doładowania silnika ZI

Mamala J.

Silniki Spalinowe

2009

R. 48, SC2

4--11

Zdolność do przyspieszenia samochodu osobowego przy gwałtownym wciśnięciu pedału przyspieszenia, jest jednym z czynników wpływających na bezpieczeństwo kierującego i pasażerów. Sytuacja ta zakłóca przebieg siły napędowej w układzie napędowym doprowadzając do chwilowego jego niedoboru. Powstający wówczas niedobór siły napędowej wynika głównie z bezwładności mechanicznej całego układu napędowego, rozumianego jako połączenie jednostki napędowej i układu przeniesienia napędu. Zjawisko to opisywane w wielu pracach, wynika głównie z akumulacji energii mechanicznej układu napędowego. W celu rozwiązania tego problemu, w samochodzie osobowym instalowane są dodatkowe źródła energii np. bezwładniki czy silniki elektryczne. Innym sposobem pozwalającym na rozwiązanie tego problemu jest pozyskanie większego momentu obrotowego z jednostki napędowej samochodu osobowego w chwili jego gwałtownego przyspieszenia. Skutecznym rozwiązaniem w takim przypadku może być zastosowanie w układzie zasilania silnika spalinowego dodatkowego doładowania świeżym ładunkiem. W referacie przeanalizowano konstrukcję układu doładowania krótkotrwałego silnika spalinowego o zapłonie iskrowym oraz przedstawiono wyniki badań stanowiskowych.

The most disadvantageous system of the automobile, because of its damaging influence on environment is powertrain. This notion means engine connection with powertrain, which is very important in respect of ecology and safety. In the matter of safety very important is ability to accelerating with rapid depressed accelerator pedal. This situation takes place during overtaking process, which is caused by driving force deficiency from engine and powertrain mechanical inertia. It has negative influence on overtaking process and also on driving comfort. This phenomenon described in works, mainly come from accumulation of mechanical energy of powertrain. Numerous research centers in the world have undertaken examinations with an aim of solving this problem. However, a successful solution to this problem has to meet a number of prerequisites of technological and economic nature. The technological ones have to involve the uncomplicated construction while the economic ones are associated with the need for low cost of application of the solution put forward. The latter question is related to meeting numerous conditions and results from the effects of special testing as a result of specific operating conditions of power transmission system. In numerous research centers abroad additional energy sources including plungers or electrical motors are installed in order for the compensation of mechanical inertia. Another way of compensation for the mechanical inertia of the transmission system is gaining larger momentum from the driving unit at the time of its abrupt acceleration. A successful solution to this problem may lie in the application of an additional boost with surplus charging in the fuel supply system. They analyzed in the paper structure of the system of charging the internal-combustion engine up about the spark ignition in the purpose for the compensation for the shortage of the driving force on wheels of the car and results of preliminary research were presented.

The system of supercharging for the spark-ignition engine

Mamala J., Jantos J., Brol S., Malewicz K., Bieniek A.

Journal of KONES

2007

Vol. 14, No. 2

291-298

The most disadvantageous system of the automobile, because of its damaging influence on environment is powertrain. This notion means engine connection with powertrain, which is very important in respect of ecology and safety. In the matter of safety very important is ability to accelerating with rapid depressed accelerator pedal. This situation takes place during overtaking process, which is caused by driving force deficiency from engine and powertrain mechanical inertia. It has negative influence on overtaking process and also on driving comfort. This phenomenon described in works, mainly come from accumulation of mechanical energy of powertrain. Numerous research centres in the world have undertaken examinations with an aim of solving this problem. However, a successful solution to this problem has to meet a number of prerequisites of technological and economic nature. The technological ones have to involve the uncomplicated construction while the economic ones are associated with the need for low cost of application of the solution put forward. The latter question is related to meeting numerous conditions and results from the effects of special testing as a result of specific operating conditions of power transmission system. In numerous research centres abroad additional energy sources including plungers or electrical motors are installed in order for the compensation of mechanical inertia. Another way of compensation for the mechanical inertia of the transmission system is gaining larger momentum from the driving unit at the time of its abrupt acceleration. A successful solution to this problem may lie in the application of an additional boost with surplus charging in the fuel supply system. They analyzed in the paper structure of the system of charging the internal-combustion engine up about the spark ignition in the purpose for the compensation for the shortage of the driving force on wheels of the car and results of preliminary research were presented.