Применение тяговых аккумуляторных батарей в составе гибридного транспортного средства обеспечивает значительную экономию топлива за счет рекуперации энергии при торможении и позволяет выбрать тяговый генератор с меньшей номинальной мощностью. При этом для транспортных средств специального назначения с высоким напряжением шины постоянного тока количество батарейных модулей и общая стоимость тяговой батареи значительно возрастают. Данная проблема может быть решена за счет применения двунаправленных DC/DC преобразователей между тяговой батарей и шиной постоянного тока.

In this article we consider one of the possible options for organizing the traction drive of a haul truck. The used scheme of the drive organization is given, and its performance is estimated by means of the drive simulation. The consideration is given to DC-to-DC converters in drives of hybrid traction systems. The conclusion is made about their influence on the efficiency of the hybrid traction drive.

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BACKGROUND: Handling and safety requirements to high-speed tracked vehicles (HSTV) rise in tandem with the growth of average motion velocities. The issue of ensuring continuously variable turn radius at curvilinear motion is relevant for HSTVs. Current layouts of steering mechanisms are able to meet this requirement, however they have certain disadvantages and are not compatible with electronic systems improving motion safety and lowering demands to mechanic-drivers skills. AIMS: The synthesis of control laws for dual-flow transmission with a hydrostatic steering mechanism (HSSM) controlled by an electromechanical actuator which exclude hard links between steering handwheel and working volume adjustment mechanism of the HSSM. METHODS: The study methods are based on using numerical simulation and ensuring real-time operation of the developed models. In addition, the study methods include synthesis of control algorithms for vehicles mechanical systems, used in on-board controllers, with adequacy assessment at virtual and laboratory experiments. RESULTS: The method of development of control systems (CS) making possible to develop and to debug CSs without a HSTV prototype has been put into force. With using the described method, the total time of CS development and debugging reduces. Workability of the method is proved with the example of development of the CS for curvilinear motion of the HSTV with dual-flow transmission. CONCLUSIONS: The study aim has been achieved, the accomplished work shows validity of the given methof of CS development.