The master's thesis deals with the functional model design of the omnidirectional chassis and its implementation. It is focused on construction of the omnidirectional chassis and choosing the suitable hardware equipment.It also deals with a project of control software for a mini-computer and a design of graphic application in the PC.

In this thesis, a simple small vehicle powered by differential chassis was projected and constructed. The vehicle is controlled manually with the help of user program on personal computer (PC). The software equipment allows recording trajectory run by the small vehicle and then repeating it automatically. The operation system of the small vehicle is based on microcontroller ATmega16 series. Communication between the microcontroller and PC is carried out through RS232 serial bus. The vehicle has digital compass and five reflex sensors that serve for obstruction detection in the closest vicinity of the vehicle. Power unit of the vehicle consists of seven NiCd cells with the capacity of 500 mAh. Propellant unit is powered directly from NiCd cells. Voltage of 5 V for feeding of the control electronics is gained through the set up clasp source of voltage connected to NiCd cells.

My diploma thesis is about project trailer bus for transportation of persons. It´s for SOR Libchavy spol. s r.o. This project work deals with four-wheel trailer bus for person transportation with independent suspension of all wheels and air axle suspension. All of the wheels are operated in dependence on turning trailer drawbar. Both of the axles are taken from front axle of bus SOR BN 12.

This thesis deals with evaluating methods of vehicle driving characteristics with focus on dumping units analytical assessment. In theoretical part thesis describes some of today analytical methods used in practice and in experimental measurement. Analytical methods allow objective evaluation in the assessment of driving characteristics. Main objective of the thesis was to formulate two independent methodical procedures for analyzing motorbike driving characteristics with the subsequent practice verification.

Those theses describe torsional stiffness car chassis. Here is write short knowledge about various type of measuring, explain impact torsional stiffness on car handling. Target of this theses is work out structural proposal of device for measuring torsional stiffness car chassis, suitable method of measuring, calculate measurement mistake and provisional cost calculation.

This diploma thesis can be divided into two main sections. The first stage contains research about mini excavators and is focused on main parts of this machines and their structural design. The second stage follow the first one and its goal is create own design of mini excavator according to chosen parameters. Parts of the second stage are execution of basic calculations, techno-economic evaluation and risk analysis. At the end there is created 3D model of designed mini excavator and summary of his properties and parameters. Goal of the whole diploma thesis is design the competitive mini excavator.

This master thesis deals with the influence of the type of tractor chassis on its utility properties. For the rating were used tractors John Deere 8 – series with wheel and track chassis, equipped with the same engine and gearbox, which were carried out for laboratory and field tests. The aim of laboratory tests was the exclusion of the difference in engine power of both tractors and the aim of field tests was to evaluate the drawbar properties of tractors with a different type of chassis. The reference parameter was especially drawbar pull, further drawbar power, slip and fuel consumption. Based on the tabular and graphical elaboration of the measured values were evaluated results.

The thesis summarizes the results of the measurement of the output parameters of the tractor, on which were mounted three different types of tires. The measured parameters are the maximum pulling power, slippage, specific effective fuel consumption at the maximum pulling performance. The final measured and calculated results are presented in tables and graphs. The results of the measurements were processed by the use of regressive analysis.

In this master thesis is analyzed the current situation in the construction chassis of tractors, in addition, a methodology for evaluating the impact of influences on drawbar properties of tractors. The main objective of this work was to analyze and conclude the measured drawbar properties of selected tractor same power and weight categories with different chassis designs. Measured and calculated values were tabular and graphically presented. When evaluating the drawbar properties were determined according tractive power and slip depending on the drawbar forces.

The master´s thesis is focused on chassis design of Formula Student car. It´s describes not only design of frame but also mounting of suspension components like arms, rockers and dampers. During whole design process was using finite elements method calculations, to achieve determined value of torsional stiffness and prevent local deformation of frame structure during drive. Value of torsional stiffness is also verificated by measurement and in last chapter is described influence of torsional stiffness on vehicle dynamics.