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Simulation of vehicle dynamics using V-REP software
Borek, Dušan ; Houfek, Lubomír (referee) ; Grepl, Robert (advisor)
This theasis deals with modeling dynamics and visualization of experimental vehicle CAR4 in software V-REP. The first part shows introduction with V-REP and its possibilities for usage in simulations. The second part presents modelling of CAR4 vehicle and its control by using software V-REP and Matlab. In last part are models of vehicle tested in simulation
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Trajectory planning for vehicle with four steering and driven wheels
Trávníček, Tomáš ; Vejlupek, Josef (referee) ; Grepl, Robert (advisor)
This thesis deals with trajectory planning and driving for two-wheel steering (2WS) and four-wheel steering (4WS) vehicle in environment with static obstacles. Algorithms, mentioned in the search, are used for planning the path for vehicles with front wheel steering. The kinematic model is ana-lyzed and simplified. The problem of trajectory planning is solved in Matlab using trajectory dis-cretization and searching within the state space. The implemented algorithm deals with obstacle collisions as long as the map is obtained, therefore the planning does not take so much computa-tional time. Finally, the algorithm is tested on a two-wheel minibike. The solution is applicable for variety of vehicles with additional movement possibilities, even when adapted it can deal with planning in the three dimensional workspace. The results of this thesis are applicable for planning for 2WS and 4WS vehicles.
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Visualization of 4WS and 4WD vehicle movement
Blechta, Martin ; Vejlupek, Josef (referee) ; Lamberský, Vojtěch (advisor)
The aim of the thesis is to develop a graphical interface for visualization of 4WS and 4WD vehicle movement defined by its mathematical model. The visualization allows testing of various dynamic and kinematic models. The visualization is controlled either with joystick or a program input. An algorithm for rear wheels steering in dependence on speed is created and validated with a computational simulation and an experiment. The mathematical model defining the vehicle movement is connected with the dSPACE system enabling real time control. The thesis evaluates advantages and disadvantages of using the MLIB library for communication between dSPACE system and MATLAB.
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