Estimation of Parameters for an Extremely Low Fuel Consumption Internal Combustion Engine-based Megameter-III Vehicle

Megameter-III is a special vehicle designed and constructed for international competitions by our team. A crucial part of the vehicle is the internal combustion engine, which ought to have extremely low fuel consumption. The experiences of previous competitions confirmed that it is necessary to develop a professional telemetry system, which allows tracking and logging online important parameters of the engine and the vehicle. In this paper, we discuss results for estimating of several parameters of the engine (angular velocity, angular acceleration, the Coulomb-Morin external friction torque and the damping constant). In our work, injector-pulses and inductive sensor’s signals were monitored

PROGRAM CODE GENERATION BASED ON UML STATECHART MODELS

Since visual modelling languages are getting more and more popular, the automatic generation of the program code on the basis of high-level models is an important issue. This article discusses implementation possibilities of statecharts, the graphical notation for describing state-based event-driven behaviour in the Unified Modelling Language (UML). The first part of the article outlines common approaches published in the literature and identifies their weaknesses. In the second part an implementation pattern is proposed that is capable of efficiently instantiating most of the statechart features. The pattern developed by us poses low hardware requirements therefore applicable even in embedded systems

Az élelmiszeripari termékek minősége és a minőségköltség

A minőség fogalmából kiindulva a szerző a minőségbiztosítás rendszerével foglalkozik. Ismerteti az élelmiszerekre vonatkozó minőségi előírásokat, az Élelmiszerkönyv szerepét, a termékek minősítésének regresszív és prezentív módjait, majd bemutatja az 1994-ben életbe lépett termék- felelősségi törvényt. Bevezetve a minőségköltség fogalmát kitér ennek összetevőire, a vele szemben támasztandó követelményekre s megszegésének várható következményeire

A Magyar Királyi 2. Honvéd Hadsereg harcai 1942-43-ban : Vázlatos áttekintés

In this study I write about the getting to the front, the first fights, the defence of the River Don, the break-through, the losses and the assessment of the fights of the Second Hungarian Royal Army in 1942–43. I mention among the controversial facts, that we got operational technology from the Germans, the Hungarian and the Hungarian-German troops did their best for the occupation of the three bridgeheads, which were on the River Don. I write that Knight nagybányai István Horthy deputy-governor, reservist and Mister flying officer killed in action on 20 August, 1942. I feel that Hungarian military leadership (Gusztáv Jány, Ferenc Szombathelyi, Vilmos Nagy nagybaczoni) did their best in order to facilitate by the situation of the army. The so-colled Crammer corps weren’t allowed to put into action by the Germans, and it was the only reserve for the Germans ont he 600-700 kilometres front section. I refute the extremely lying charge, that this army would run away cowardly for the first gunshot and I prove it too. I mention that there were cruel fights for days and the commander of the attacking Red Army wrote that the break-through was on 13 January 1943. In this study you can read about the heroic defence of Osztrogorszk, Alekszejevka and Ilinka. The loss of the 2nd H. R. Army was about 125–128 000 persons, and the loss of the Red Army was about 100–155 000 persons. This fact in itself refutes the charge of the immediately running away. The publication of the loss of the Red Army hasn’t been allowed for 40–50 years. It is true that the Russian troops broke-through the front but the 2nd H. R. Army were correct to the best of their power. The Red Army couldn’t surround and destroy them