Článek se zabývá tvorbou řídicího algoritmu pro uzavírání diferenciálu nákladního vozidla. Algori... more Článek se zabývá tvorbou řídicího algoritmu pro uzavírání diferenciálu nákladního vozidla. Algoritmus vychází z předpokladů systému ZF ADM a je tvořen v softwaru Simulink-Stateflow. Článek především popisuje funkci algoritmu a jeho aplikaci na výpočtový model vozidla s pohonem 4x4. V závěru je provedena simulace jízdního manévru k ověření funkčnosti sestaveného řídicího algoritmu uzavírání diferenciálu.The paper deals with the creation of control algorithm for locking differential of a truck. This algorithm is based on assumptions of ZF ADM system and it is created using software Simulink-Stateflow. The article mainly describes the function of algorithm and its application to a computational model of a truck with 4x4 drive. In conclusion, a simulation of driving manoeuvres was done to verify the functionality of the assembled differential control algorithm
This article describes the main parts of an open and universal data analysis software TeleMatrix ... more This article describes the main parts of an open and universal data analysis software TeleMatrix V3 based on MATLAB. It helps simplify and speed up most of the processes of the measurement data evaluation
Článek se zabývá tvorbou řídicího algoritmu pro uzavírání diferenciálu nákladního vozidla. Algori... more Článek se zabývá tvorbou řídicího algoritmu pro uzavírání diferenciálu nákladního vozidla. Algoritmus vychází z předpokladů systému ZF ADM a je tvořen v softwaru Simulink-Stateflow. Článek především popisuje funkci algoritmu a jeho aplikaci na výpočtový model vozidla s pohonem 4x4. V závěru je provedena simulace jízdního manévru k ověření funkčnosti sestaveného řídicího algoritmu uzavírání diferenciálu.The paper deals with the creation of control algorithm for locking differential of a truck. This algorithm is based on assumptions of ZF ADM system and it is created using software Simulink-Stateflow. The article mainly describes the function of algorithm and its application to a computational model of a truck with 4x4 drive. In conclusion, a simulation of driving manoeuvres was done to verify the functionality of the assembled differential control algorithm
This article describes the main parts of an open and universal data analysis software TeleMatrix ... more This article describes the main parts of an open and universal data analysis software TeleMatrix V3 based on MATLAB. It helps simplify and speed up most of the processes of the measurement data evaluation
This article discusses the problems of body motion in three-dimensional space and numerical simul... more This article discusses the problems of body motion in three-dimensional space and numerical simulations using Newton-Euler motion equations
This article discusses the problems of body motion in three-dimensional space and numerical simul... more This article discusses the problems of body motion in three-dimensional space and numerical simulations using Newton-Euler motion equations
Journal of Middle European Construction and Design of Cars, 2011
SHRNUTI Članek popisuje optimalizaci kinematickych charakteristik zavěšeni kol automobilu. Vyprac... more SHRNUTI Članek popisuje optimalizaci kinematickych charakteristik zavěšeni kol automobilu. Vypracovana metoda zohledňuje specificke požadavky na optimalizaci kinematickych vlastnosti napravy a na proces konstrukčniho navrhu a to jak v etapě vyvoje před vyrobenim prvniho prototypu, tak v etapě testovani a dolaďovani vlastnosti vozidla na zakladě jizdnich testů. Přiklad aplikace metody konkretizuje jednotlive dilči ulohy vedouci k dosaženi optimalnich hodnot parametrů napravy.
Journal of Middle European Construction and Design of Cars, 2013
Shrnutí Članek popisuje postup určeni momentu setrvačnosti vozidla ke svisle ose. Je navržen měři... more Shrnutí Članek popisuje postup určeni momentu setrvačnosti vozidla ke svisle ose. Je navržen měřici stav pro měřeni momentu setrvačnosti založeny na principu fyzikalniho kyvadla a je analyzovan vliv chyby měřeni periody kmitu na celkovou chybu určeni momentu setrvačnosti. V programu Labview je sestaven vypočtovy postup pro přesne určeni periody kmitaveho pohybu z naměřenych dat. Funkčnost celeho měřiciho postupu je ověřena stanovenim přesnosti a opakovatelnosti měřeni.
This article describes a simple and easy to implement method for numerical computing of movement ... more This article describes a simple and easy to implement method for numerical computing of movement of general multibody mechanism. The method is suitable for two or three-dimensional space, rigid bodies and all types of kinematic joints. The main advantage of this method lies in the possibility of using very low discretization time step but with high computing performance due effective implementation. This approach has a positive effect to numerical stability, speed and resistance to discontinuous parameter changes. The usability of described method is verified through an experimental multibody system.
Abstract The paper deals with the determination of the tractor wheel load during tillage. Forces ... more Abstract The paper deals with the determination of the tractor wheel load during tillage. Forces acting between tractor and implement significantly change the load of driving wheels. Mathematical description of simple model fails due to impossibility of determination these forces between the tractor and implement. The article describes the multi-body model used for calculation of resultant force and torque acting from the implement on a tractor as well as the forces acting between the wheels and the soil. Paper also shows the results of verification of calculations based on experimental measurements carried out in the laboratory and tests performed under the field conditions.
The goal of this article is to present a method for vehicle dynamics development based on multibo... more The goal of this article is to present a method for vehicle dynamics development based on multibody system approach in combination with real vehicle testing and data analysis. Described technique consists of two multibody models with the same level of complexity. First direct multibody model of the complete vehicle is suitable mainly for sensitivity analysis. The other inverse multibody model is used for real vehicle dynamic states reconstruction from measured data. Results of these two models are then post-processed and visualized together in a custom-made data analysis software.
Článek se zabývá tvorbou řídicího algoritmu pro uzavírání diferenciálu nákladního vozidla. Algori... more Článek se zabývá tvorbou řídicího algoritmu pro uzavírání diferenciálu nákladního vozidla. Algoritmus vychází z předpokladů systému ZF ADM a je tvořen v softwaru Simulink-Stateflow. Článek především popisuje funkci algoritmu a jeho aplikaci na výpočtový model vozidla s pohonem 4x4. V závěru je provedena simulace jízdního manévru k ověření funkčnosti sestaveného řídicího algoritmu uzavírání diferenciálu.The paper deals with the creation of control algorithm for locking differential of a truck. This algorithm is based on assumptions of ZF ADM system and it is created using software Simulink-Stateflow. The article mainly describes the function of algorithm and its application to a computational model of a truck with 4x4 drive. In conclusion, a simulation of driving manoeuvres was done to verify the functionality of the assembled differential control algorithm
This article describes the main parts of an open and universal data analysis software TeleMatrix ... more This article describes the main parts of an open and universal data analysis software TeleMatrix V3 based on MATLAB. It helps simplify and speed up most of the processes of the measurement data evaluation
Článek se zabývá tvorbou řídicího algoritmu pro uzavírání diferenciálu nákladního vozidla. Algori... more Článek se zabývá tvorbou řídicího algoritmu pro uzavírání diferenciálu nákladního vozidla. Algoritmus vychází z předpokladů systému ZF ADM a je tvořen v softwaru Simulink-Stateflow. Článek především popisuje funkci algoritmu a jeho aplikaci na výpočtový model vozidla s pohonem 4x4. V závěru je provedena simulace jízdního manévru k ověření funkčnosti sestaveného řídicího algoritmu uzavírání diferenciálu.The paper deals with the creation of control algorithm for locking differential of a truck. This algorithm is based on assumptions of ZF ADM system and it is created using software Simulink-Stateflow. The article mainly describes the function of algorithm and its application to a computational model of a truck with 4x4 drive. In conclusion, a simulation of driving manoeuvres was done to verify the functionality of the assembled differential control algorithm
This article describes the main parts of an open and universal data analysis software TeleMatrix ... more This article describes the main parts of an open and universal data analysis software TeleMatrix V3 based on MATLAB. It helps simplify and speed up most of the processes of the measurement data evaluation
This article discusses the problems of body motion in three-dimensional space and numerical simul... more This article discusses the problems of body motion in three-dimensional space and numerical simulations using Newton-Euler motion equations
This article discusses the problems of body motion in three-dimensional space and numerical simul... more This article discusses the problems of body motion in three-dimensional space and numerical simulations using Newton-Euler motion equations
Journal of Middle European Construction and Design of Cars, 2011
SHRNUTI Članek popisuje optimalizaci kinematickych charakteristik zavěšeni kol automobilu. Vyprac... more SHRNUTI Članek popisuje optimalizaci kinematickych charakteristik zavěšeni kol automobilu. Vypracovana metoda zohledňuje specificke požadavky na optimalizaci kinematickych vlastnosti napravy a na proces konstrukčniho navrhu a to jak v etapě vyvoje před vyrobenim prvniho prototypu, tak v etapě testovani a dolaďovani vlastnosti vozidla na zakladě jizdnich testů. Přiklad aplikace metody konkretizuje jednotlive dilči ulohy vedouci k dosaženi optimalnich hodnot parametrů napravy.
Journal of Middle European Construction and Design of Cars, 2013
Shrnutí Članek popisuje postup určeni momentu setrvačnosti vozidla ke svisle ose. Je navržen měři... more Shrnutí Članek popisuje postup určeni momentu setrvačnosti vozidla ke svisle ose. Je navržen měřici stav pro měřeni momentu setrvačnosti založeny na principu fyzikalniho kyvadla a je analyzovan vliv chyby měřeni periody kmitu na celkovou chybu určeni momentu setrvačnosti. V programu Labview je sestaven vypočtovy postup pro přesne určeni periody kmitaveho pohybu z naměřenych dat. Funkčnost celeho měřiciho postupu je ověřena stanovenim přesnosti a opakovatelnosti měřeni.
This article describes a simple and easy to implement method for numerical computing of movement ... more This article describes a simple and easy to implement method for numerical computing of movement of general multibody mechanism. The method is suitable for two or three-dimensional space, rigid bodies and all types of kinematic joints. The main advantage of this method lies in the possibility of using very low discretization time step but with high computing performance due effective implementation. This approach has a positive effect to numerical stability, speed and resistance to discontinuous parameter changes. The usability of described method is verified through an experimental multibody system.
Abstract The paper deals with the determination of the tractor wheel load during tillage. Forces ... more Abstract The paper deals with the determination of the tractor wheel load during tillage. Forces acting between tractor and implement significantly change the load of driving wheels. Mathematical description of simple model fails due to impossibility of determination these forces between the tractor and implement. The article describes the multi-body model used for calculation of resultant force and torque acting from the implement on a tractor as well as the forces acting between the wheels and the soil. Paper also shows the results of verification of calculations based on experimental measurements carried out in the laboratory and tests performed under the field conditions.
The goal of this article is to present a method for vehicle dynamics development based on multibo... more The goal of this article is to present a method for vehicle dynamics development based on multibody system approach in combination with real vehicle testing and data analysis. Described technique consists of two multibody models with the same level of complexity. First direct multibody model of the complete vehicle is suitable mainly for sensitivity analysis. The other inverse multibody model is used for real vehicle dynamic states reconstruction from measured data. Results of these two models are then post-processed and visualized together in a custom-made data analysis software.
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