<p>This article overviews the history of development of driverless vehicles both in Russia and the World. Foreign experience of development of driverless vehicles, including electric traction, is analyzed. Main stages of creation of experimental NAMI driverless electric vehicle are revised. Main engineering solutions are described concerning development of advanced NAMI driverless electric vehicle, its major components and control systems. Projects aimed at environmental safety of passengers in NAMI driverless electric vehicle are exemplified. Results of bench scale and running tests of NAMI driverless electric vehicle are summarized. Major advantages of driverless energy efficient and environmentally clean transport are demonstrated.</p>
This paper describes the tendency of creation of driverless vehicles in Russia and in the world. Analyzed international experience developing driverless vehicles. Showing the prerequisites for the development of similar vehicles in Russia. The experience of the FSUE "NAMI" in the field of driverless transport.
The article presents the results of mathematical modeling and implementation of algorithms for ensuring the charge balance of an automotive low-voltage battery as part of an intelligent vehicle control system with a hybrid power system. The aim of the research is to evaluate the effectiveness of the proposed complex of mathematical models in calculating the control parameters of the DCDC converter to achieve a positive charge balance of the low-voltage battery. The work evaluates the boundary conditions of the system and adapts the mathematical models and algorithms implemented in the program code of the controller as part of the current model of an intelligent vehicle with a combined power system. The following parameters are evaluated as criteria for the optimality of the proposed models: SOC - state of charge (%), battery charge (A * h), charge and discharge current of the battery (A), voltage on the battery during its charge, in the absence of a charging current and at rest (V). A full-scale experiment was carried out, experimental data and graphs were obtained. Optimal control coefficients for the processes of charge and discharge of the battery, current characteristics, the dynamics of their changes during operation, experimental time-current dependences during the operation of each component of the low-voltage power supply network were studied. The results of the work make it possible to make adjustments to the charge balance management model and contribute to improving the energy balance of the power grid, increasing the efficiency and service life of batteries, forming requirements for power systems and their subsequent implementation.
The article presents the results of mathematical models and algorithms development complex, which is aimed at ensuring a positive charge balance of an automobile low-voltage rechargeable battery in car control systems with a hybrid power system. The aim of the work is to create and implement a set of software and mathematical models on one of the existing passenger car model, using the default components and systems of the car, to achieve a positive energy balance of the automotive low-voltage power network, and also to solve the problem of battery discharge by normalizing the turn-on time of powerful consumers leading to fast battery discharge. As criteria for the optimal performance of the proposed models and algorithms, the SOC parameters are considered - state of charge (%), battery charge (A * h), charge and discharge current of a battery (A), voltage on a battery during its charge when a charging current is absent or in a quiescent state (V), ambient temperature (˚C). Authors defined: composition of a control system, the necessary logic and a set of mathematical models implemented by electronic systems to control the charging balance of the automotive low-voltage power supply network, connections and functions of systems and components. As a result of a full-scale experiment, charge and discharge graphs, experimental data, current characteristics and dynamics of their changes during operation, experimental time-current dependencies during the operation of each component of a low-voltage power grid were obtained. The results of the work support to improve energy balance of an electrical power network, increase the efficiency and service life cycle of batteries, formulate system and technical requirements for control systems and their subsequent implementation. Versatility solutions are provided for improving management of charge balance car battery.
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