Sökning: "Automotive designs"

Visar resultat 1 - 5 av 49 avhandlingar innehållade orden Automotive designs.

  1. 1. Advanced automotive radar front-end based on gapwaveguide technology

    Författare :Qiannan Ren; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MMIC; FMCW; gapwaveguide; packaging; automotive; dual circular polarization; antenna; imaging radar; polarimetric radar; Integration; LiP; MIMO;

    Sammanfattning : The pursuit of higher levels of autonomous driving necessitates the utilization of advanced radar sensors that possess improved environmental perception capabilities. Consequently, next-generation automotive radars require sophisticated antenna systems with high efficiency, thereby making waveguide antennas a more viable choice. LÄS MER

  3. 2. Mathematical Modelling in Catalytic Automotive Pollution Control

    Författare :Lennart Andersson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; automotive pollution control; matematical modelling; monolith; selective catalytic reduction; mass transfer;

    Sammanfattning : Design and control of honeycomb monolith reactors for catalytic automotive pollution control by mathematical modelling of the reactor has been studied. One aspect of the design has been that the use of metallic monolithic catalysts for automotive emission control raises certain optimization possibilities. LÄS MER

  4. 3. Advanced Antenna Systems for Fully Polarimetric Radar in Automotive Scenario

    Författare :Zhaorui Zang; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; circular polarization; gap waveguide; Antenna; dual circular polarization; automotive radar; polarimetric radar;

    Sammanfattning : The increasing dependence on Advanced Driver Assistance Systems (ADAS) highlights the critical need for fast target recognition, effective collision avoidance, cruise control, lane assistance, etc. This necessitates a significant advancement in sensor technology, particularly for accurate target classification and road surface sensing. LÄS MER

  5. 4. Development of Multi-grit cBN Grinding Wheel for Crankshaft Grinding

    Författare :Nastja Macerol; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; crankshaft; grinding; wear; grit concentration; grit toughness; grinding wheels; grit size; automotive; grit shape; cubic Boron Nitride;

    Sammanfattning : A crankpin, part of a crankshaft, has a complex profile that is difficult to grind. The process often causes challenges such as excessive heat on the crankpin sidewall and wheel wear on the radius, causing reduced dressing interval. Different solutions were proposed to overcome these challenges, mainly focusing on the process, i.e. LÄS MER

  7. 5. Metamodel-Based Design Optimization : A Multidisciplinary Approach for Automotive Structures

    Författare :Ann-Britt Ryberg; Larsgunnar Nilsson; Harald Hasselblad; Linköpings universitet; []
    Nyckelord :Metamodel-based design optimization MBDO ; multidisciplinary design optimization MDO ; automotive structures;

    Sammanfattning : Automotive companies are exposed to tough competition and therefore strive to design better products in a cheaper and faster manner. This challenge requires continuous improvements of methods and tools, and simulation models are therefore used to evaluate every possible aspect of the product. LÄS MER