Conceptual bases for forming a hybrid drive of a high traffic vehicle

Abstract

The hybrid drive is growing in popularity and is already present in almost the majority of classes of the new model generation of military vehicles (MV) of the NATO countries, the Russian Federation, and the People's Republic of China. The main advantage of the hybrid MV drive is, first of all, a significant reduction in the ability to locate the movement in the sound and infrared frequency spectra when driving on electric traction with the internal combustion engine turned off, as well as an increase in the power reserve due to a decrease in the linear consumption of motor fuel. The purpose of the study is to form a general structure - a scheme of a hybrid drive of a high-possibility car for off-road and to evaluate the basic necessary parameters of power drive units, taking into account the characteristics of off-road driving. Based on the analysis of trends in the development of military buggies and areas of use in modern conditions of war and the urgent need for machines of this class at the front, the feasibility of actually two-stage implementation of modifications with a hybrid drive for the Armed Forces of Ukraine of the ultralight domestic buggy TUR KV 02 “Mamai” was determined, which meets the regulatory requirements of the NATO base countries regarding of wheeled equipment of the front edge, and provides appropriate mobility for off-road traffic.
 In contrast to serial passenger cars and crossovers, the hybrid drive of MV is based on a series scheme with the possibility of external plug-in charging, as well as the use of the hybrid drive as an autonomous power source for other consumers in the field. At the 2nd stage of the development of the hybrid drive of the TUR KV02 “Mamay” buggy, a unified layout of the drive units is provided with the possibility of short-term simultaneous connection of the drive wheels of both the traction electric motor and the internal combustion engine with the synchronization of their speed modes for driving on difficult off-road or increasing acceleration dynamics. The capacity of the batteries is formed by the necessary reserve of autonomous driving on electric traction in typical off-road areas in the area of combat use. The unit of traction batteries is easily replaceable in the conditions of places of permanent deployment and has increased protection against water ingress during short-term forcing of minor water obstacles and provides for the option of Level 1 STANAG 4589 ballistic protection.