Search for dissertations about: "road characteristics"

Showing result 11 - 15 of 157 swedish dissertations containing the words road characteristics.

  2. 11. On Numerical Descriptions of Road Transport Missions

    Author : Pär Pettersson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy efficiency; Transport mission description; CO$_2$-emission; full vehicle simulation; road format; energy consumption; operating cycle;

    Abstract : This thesis addresses some issues of current interest in energy consumption prediction through simulation. First, we review the situation for rating, regulation and legislation of CO$_2$-emissions for cars and heavy vehicles. READ MORE

  4. 12. Computer based statistical treatment in models with incidental parameters : inspired by car crash data

    Author : Anna Vadeby; Ola Hössjer; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematical model; Accident; Statistics; Analysis; Driver; Characteristics; MATHEMATICS; MATEMATIK; 812 Road: Collation of accident statistics; 812 Road: Collation of accident statistics;

    Abstract : Bootstrap and Markov chain Monte Carlo methods have received much attention in recent years. We study computer intensive methods that can be used in complex situations where it is not possible to express the likelihood estimates or the posterior analytically. The work is inspired by a set of car crash data from real traffic. READ MORE

  5. 13. The operating cycle representation of road transport missions

    Author : Luigi Romano; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; operating cycle; transport application; road mission; probability distributions; stochastic processes; energy estimation;

    Abstract : The difficulties that conventionally road vehicles are facing in meeting regulation standards require ad-hoc solutions. Moreover, the impellent shift of paradigm towards full electrification and partial automation is posing great challenges to the automotive industry, which has set a zero-emissions target to be reached within a short time horizon. READ MORE

  6. 14. Mathematical modelling of operating cycles for road vehicles

    Author : Luigi Romano; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy estimation; transport application; operating cycle; autoregressive models; road mission; stochastic models;

    Abstract : Difficulties that commercial vehicles are facing in meeting regulation standards require ad-hoc solutions. Emissions can be dramatically lowered if the characteristics of the transport application are known in advance. READ MORE

  7. 15. Dynamic contact stiffness and air-flow related source mechanisms in the tyre/road contact

    Author : Julia Winroth; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tyre road noise; Tread modelling; Air-flow related source mechanisms; Air pumping; Tyre road contact;

    Abstract : Two aspect of phenomena occurring in, and in the vicinity of the contact patch formed by a tyre rolling on a road are here investigated: 1. A detailed numerical time domain contact model is used to evaluate approximations of the tread response that are commonly embraced in tyre/road interaction models. 2. READ MORE