Vol 9, No 2-1 (2015)
- Year: 2015
- Articles: 27
- URL: https://journals.rcsi.science/2074-0530/issue/view/3728
Articles
Research of automobile active suspension with magnetorheological damper
Abstract
The paper shows results of dynamic characteristics research of vibrating system, which is equivalent to automobile suspension with controllable magnetorheological damper. The possibility of improving the quality of vehicle vibration protection by discrete changing parameters of the controlled magnetorheological damper is considered. On the basis of obtained results the algorithm of discrete reconfiguration is proposed.
Izvestiya MGTU MAMI. 2015;9(2-1):5-10
5-10
Computer modeling of assembly and manufacturing technological processes of ground vehicle electrical equipment
Abstract
The article discusses approaches to assembly and manufacturing of ground vehicle electrical equipment. There were developed: the technique of visualization the original data and the results of devices simulation and their subsequent conversion to specialized computational package for optimization of parameters by a given criterion, and detecting technological inconsistencies at an early stage in the modeling process.
Izvestiya MGTU MAMI. 2015;9(2-1):10-16
10-16
Environmental and economic problems of various projects of "eco-friendly" green car
Abstract
The article analyzes the problems of ecological characteristics and economic costs associated with reducing air pollution at cities with harmful emissions from road transport. There was made a comparative analysis of the environmental and economic damage caused by emissions of harmful substances in exhaust gases and the wear of tires and brake mechanisms of road transport. It is offered the effective measures to reduce harmful effects of pollution on passengers and drivers, as well as it is justified the annual motor vehicle tax on road transport.
Izvestiya MGTU MAMI. 2015;9(2-1):16-23
16-23
23-27
27-31
Microprocessor-controlled antiblocking system of motorcycle
Abstract
The paper deals with the subject of microprocessor-controlled antiblocking system of motorcycle design. The proposed system uses data about tilt angle of motorcycle relative to road surface. It also considers data on magnitude of lateral forces and magnitude of the actually developed braking torque and stresses of front and rear axles.
Izvestiya MGTU MAMI. 2015;9(2-1):31-35
31-35
35-41
The study of KAMAZ-4308 acceleration with single-threaded and dual-threaded clutch in transmission
Abstract
The article presents description of mathematical models of the car with single-threaded and dual-threaded clutch, which allow studying the characteristics of acceleration of vehicle. The results of computer simulation of gear shifting process for the considered clutch designs are shown.
Izvestiya MGTU MAMI. 2015;9(2-1):41-49
41-49
49-52
Matrix LED headlamps
Abstract
The article describes design and light distribution features of automotive LED headlights with automatic switching on and off of high beam light. Switching of high beam light is provided by means of an electronic control unit, which is operated by signals from the front camera and the navigation system of vehicle.
Izvestiya MGTU MAMI. 2015;9(2-1):52-55
52-55
Current source for hardening electrical equipment of vehicles
Abstract
The paper discusses issues of creating a powerful electron source of technologic current, which is intended to harden products of automotive engineering made on the basis of alloys of aluminium and titanium using microarc oxidation. While developing the source it is used the modern database of low-current and power electronics. Block diagram of the source and results of its individual components development are provided.
Izvestiya MGTU MAMI. 2015;9(2-1):55-58
55-58
Dynamics of hydraulic drive with mono and bi-profile operating bodies of governors hydrodevices
Abstract
The article considers the possibility of improving dynamic characteristics of hydraulic drive when it is slowing down due to the use in governors hydrodevices the spools with two kinds of profiles of operating bodies, but not with one profile as it is used nowadays. According to the obtained formulas a comparative analysis of controlling device motion was made for various dimensionless parameters of the hydraulic drives, when using mono and bi-profile operating bodies. The procedure for finding the parameters of bi-profile operating bodies is considered.
Izvestiya MGTU MAMI. 2015;9(2-1):58-63
58-63
Review of the status and prospects of development of existing solutions in the field of converting vehicles to electric vehicles
Abstract
The growing market of vehicles on alternative energy sources and the desire of automakers to switch to the production of efficient and environmentally friendly vehicles lead to searching of various possibilities to make this desire coming true. In addition to designing and mass production of new electric cars the promising direction is converting combustion vehicles to electric. This article presents a review of international experience in the field of conversion of existing vehicles with internal combustion engines to electric vehicles and vehicles with hybrid powertrains.
Izvestiya MGTU MAMI. 2015;9(2-1):63-66
63-66
Computer model of the vehicle operator
Abstract
When designing mobile technology systems it is needed to take into account physiological characteristics of a person, as an operator. The main objective is to simulate movements of operators, to study dynamic effects of the vehicle on a human operator performing the functions of management of working bodies of technological equipment and vehicle control. This paper describes development of a mathematical model of the vehicle operator, including the bodies involved in the procedures and actions related to obtaining control information and management of working bodies.
Izvestiya MGTU MAMI. 2015;9(2-1):66-71
66-71
Ways to improve the quality of habitability of the crew workplaces of armored vehicles during operation
Abstract
The article considers ways to improve the quality of habitability of crew workplaces of armored vehicles during operation. The analysis performed for different ways to remove powder gases from the crew compartment of combat vehicles. It is proposed the new original methods of cleaning of habitable compartments of combat vehicles from the powder gases.
Izvestiya MGTU MAMI. 2015;9(2-1):71-74
71-74
Improvement of the system of collective defense and providing of habitability of combat units of military vehicles
Abstract
The article describes the existing systems of collective protection and habitability of combat units of military vehicles. The authors analyzed different methods of collective protection of the crew of military vehicles. Provided are recommendations for improving of the design of military vehicles.
Izvestiya MGTU MAMI. 2015;9(2-1):74-78
74-78
78-84
Starting device with a molecular energy store
Abstract
The article presents the classification of auxiliary power sources and starters, sets out the basic requirements for them. The authors revealed the possibilities and prospects for use of molecular energy storage as a part of starters. Described are the developed portable starting device PPU-14 and test results.
Izvestiya MGTU MAMI. 2015;9(2-1):84-90
84-90
Analysis of power flows distribution in the transmission of an articulated truck with an activated trailing unit
Abstract
The article describes the results of mathematical modeling of steady linear motion of an articulated truck with activated trailing unit, with drive ensured by the adjustable hydrostatic transmission, on a non-deformable support surface. The analysis was performed in the range of gear ratios of driving wheels of the trailer, where the interaxial power circulation in transmission does not occur. Based on the studies the authors compared informativeness of various energy efficiency indicators of the considered multidrive wheel car.
Izvestiya MGTU MAMI. 2015;9(2-1):90-100
90-100
Study of operation of the model of an integrated starter-generator in generator mode
Abstract
The article discusses the simulation of a generator mode of an integrated starter-generator in Matlab Simulink. The authors conduct the study of the model of main characteristics of the integrated starter-generator in generator mode. The simulation results compared with the results of analytical calculations.
Izvestiya MGTU MAMI. 2015;9(2-1):100-105
100-105
Study on the model of automotive electric starter system on the basis of integrated starter-generator
Abstract
The paper deals with simulation of an electric starter system of a vehicle on the basis of an integrated starter-generator. As a basic electric machine integrated starter-generator is taken a synchronous machine with permanent magnet excitation. The authors examined the modeling of the integrated starter-generator, where the model is in start-up mode is represented by a single-speed automatic control system consisting of a PI controller to compensate the long time constant of a controlled object - an internal combustion engine.
Izvestiya MGTU MAMI. 2015;9(2-1):105-111
105-111
Mathematical models of electromechanics as an asymptotics of Maxwell-Minkowski equations
Abstract
The article describes the methodological shortcomings of the standard formulation of the electrodynamics of moving material bodies: restriction of inertial motion of the bodies, the use of material relations in the form of linear equations with constant coefficients, absence of analytically correct transition to quasi-stationary electromagnetic processes. It is shown that these disadvantages can be overcome by using of experimental fact of absence of the electromagnetic field’s rest mass and applying the asymptotic expansions of the fields on the small parameters, which is the ratio of bodies’ speed to the light speed and the ratio of technical device sizes to the minimum length of the electromagnetic wave.
Izvestiya MGTU MAMI. 2015;9(2-1):111-116
111-116
Device for compensation of battery self-discharge
Abstract
The article describes an electronic device that compensates self-discharge of the battery set out to operating condition and being stored. The authors compared the device with known samples. Its autonomy allows to convert solar energy into electricity and to compensate self-discharge of the battery that is being stored.
Izvestiya MGTU MAMI. 2015;9(2-1):116-119
116-119
Estimated determination of noise dispersion of towing vehicles
Abstract
The paper discusses issues related to the possibility of obtaining of the value of noise dispersion of towing vehicles by calculation. The authors obtained mathematical expressions to determine the dispersion of depending on confidence interval of individual noise sources. The article shows a general procedure for evaluating of probable dispersion of the results of the estimated noise of a vehicle.
Izvestiya MGTU MAMI. 2015;9(2-1):119-122
119-122
Definition of parameters of main components of a vehicle power plant
Abstract
The article deals with definition and calculation of characteristics of the main components of vehicle power plants, it presents principles for selection of rational characteristics of the internal combustion engine and components of traction electrical system in a hybrid power plant, there are expressions for estimation of the parameters.
Izvestiya MGTU MAMI. 2015;9(2-1):122-128
122-128
Control of a diesel-generator set of a heavy truck in transient conditions
Abstract
The article deals with the task of improving fuel efficiency and service life of a diesel-generator within the system of additional energy and activation of heavy truck containing the traction electric drive. The authors proposed a program for control of rotational speed and load in transient conditions, which allows to solve the problem. The program tested in bench tests.
Izvestiya MGTU MAMI. 2015;9(2-1):128-133
128-133
133-135