|
|
Vehicle speed estimation
Roštek, Martin ; Kumpán, Pavel (oponent) ; Krejsa, Jiří (vedoucí práce)
Vehicle speed is one of the crucial variables needed to be known in real-time and with high accuracy, to serve as input into vehicle dynamic control systems. Its direct measurement in the vehicle is however cost ineffective. The idea is to use the measurements from generally available on-board sensors and to consequently compute the vehicle speed. Nevertheless, the measurements are highly influenced by process noises due to complexity of motion of the vehicle. Therefore, an estimation algorithm with ability to deal with this negative influence has to be developed. The estimation algorithm presented in this thesis estimates longitudinal vehicle speed using measurements of four rotational wheel speeds, longitudinal acceleration, motor torques, yaw rate and steering wheel angle. It was tested against the numerous situations considered critical according to vehicle speed estimation, such as rapid acceleration on road with low friction coefficient, emergency braking with activation of ABS, or driving in the slope with wheels slipping, providing satisfactory results.
|
|
|
Production of liquid biofuels by using enzymatic hydrolysis of waste paper
Roštek, Martin ; Jecha, David (oponent) ; Brummer, Vladimír (vedoucí práce)
This bachelor thesis focuses on the retrieval summary of current knowledge about the process of enzymatic hydrolysis with utilization of waste paper as raw material, in order to convert it into liquid biofuels. The thesis summarizes the general knowledge of the lignocellulosic a raw materials and their resources, an overview of available hydrolysis methods for materials and fermentation technologies, and also summary of methods currently used to rise enzymatic hydrolysis process effectivity. The next section provides an overview of commercial plants which use enzymatic hydrolysis of lignocellulosic materials.
|
|
|
Vehicle speed estimation
Roštek, Martin ; Kumpán, Pavel (oponent) ; Krejsa, Jiří (vedoucí práce)
Vehicle speed is one of the crucial variables needed to be known in real-time and with high accuracy, to serve as input into vehicle dynamic control systems. Its direct measurement in the vehicle is however cost ineffective. The idea is to use the measurements from generally available on-board sensors and to consequently compute the vehicle speed. Nevertheless, the measurements are highly influenced by process noises due to complexity of motion of the vehicle. Therefore, an estimation algorithm with ability to deal with this negative influence has to be developed. The estimation algorithm presented in this thesis estimates longitudinal vehicle speed using measurements of four rotational wheel speeds, longitudinal acceleration, motor torques, yaw rate and steering wheel angle. It was tested against the numerous situations considered critical according to vehicle speed estimation, such as rapid acceleration on road with low friction coefficient, emergency braking with activation of ABS, or driving in the slope with wheels slipping, providing satisfactory results.
|
|
|
Production of liquid biofuels by using enzymatic hydrolysis of waste paper
Roštek, Martin ; Jecha, David (oponent) ; Brummer, Vladimír (vedoucí práce)
This bachelor thesis focuses on the retrieval summary of current knowledge about the process of enzymatic hydrolysis with utilization of waste paper as raw material, in order to convert it into liquid biofuels. The thesis summarizes the general knowledge of the lignocellulosic a raw materials and their resources, an overview of available hydrolysis methods for materials and fermentation technologies, and also summary of methods currently used to rise enzymatic hydrolysis process effectivity. The next section provides an overview of commercial plants which use enzymatic hydrolysis of lignocellulosic materials.
|
host ::
RSS.